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124 results on '"Thierry VAL"'

1. Technological Services in Shared Housing: Needs Elicitation Method from Home to Living Lab

Author

Frédéric Vella, Elizabeth Bougeois, Josette Ancilotto, Nadine Vigouroux, Eric Campo, Thierry Val, Pierre Rumeau, Adrien van den Bossche, Gérontopôle, Epidémiologie et analyses en santé publique : risques, maladies chroniques et handicaps (LEASP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Toulouse [Toulouse], Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Équipe Instrumentation embarquée et systèmes de surveillance intelligents (LAAS-S4M), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse 1 Capitole (UT1)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Laboratoire d'Etudes et de Recherches Appliquées en Sciences Sociales (LERASS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Paul-Valéry - Montpellier 3 (UPVM), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut Universitaire de Technologie - IUT (Blagnac, France), Université Toulouse - Jean Jaurès (UT2J), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse], Laboratoire de Gérontechnologie [Hôpital La Grave-CHU de Toulouse], Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Gérontopôle, Hôpital La Grave-Casselardit [Toulouse], CHU Toulouse [Toulouse], Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Centre National de la Recherche Scientifique (CNRS), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Paul-Valéry - Montpellier 3 (UPVM)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Ages Sans Frontières, Pôle Gériatrie [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Université Toulouse Capitole (UT Capitole), Université Fédérale Toulouse Midi-Pyrénées-Toulouse Mind & Brain Institut (TMBI), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse Capitole (UT Capitole), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Vella, Frédéric, Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), and Université Paul-Valéry - Montpellier 3 (UPVM)-Université Toulouse - Jean Jaurès (UT2J)

Subjects
0206 medical engineering, Biomedical Engineering, Biophysics, 02 engineering and technology, 030218 nuclear medicine & medical imaging, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 03 medical and health sciences, Elderly, 0302 clinical medicine, Living lab, Home automation, Narrative, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Sociology, Social organization, Ambient intelligence, shared housing, business.industry, Public relations, Social engagement, 020601 biomedical engineering, Focus group, Order (business), [INFO.EIAH]Computer Science [cs]/Technology for Human Learning, [INFO.INFO-HC] Computer Science [cs]/Human-Computer Interaction [cs.HC], Needs elicitation method, business
Abstract

International audience; Housing under a shared housing organisation enables frail elderly persons to live in a semi autonomous way, thanks to cooperation between residents and an assistant. The social organization of this new type of housing also has an impact on the social participation of users. This article is based on a pilot study and deals with the benefits of digital technologies and “ambient intelligence” used to answer the needs of such a way of living. The pilot study was carried out in a house shared by 6 co-tenants. The qualitative method used first consisted in a characterisation of the 6 inhabitants. This was followed by semi-structured interviews about their sensed needs, and a focus group, with 5 of the 6 co-tenants, in order to gain an initial consensus about needs. This result was confronted to the demands of the assistants, collected through interviews. A usage scenario was developed in a smart home (Maison Intelligente de Blagnac). This scenario was performed by three of the inhabitants and followed by a second focus group and a narrative interview with the assistants and the designers of the shared house. This article reports the method which was carried out and the needs expressed by the co-tenants.

Published
2021
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2. Elderly monitoring system in a smart city environment using LoRa and MQTT

Author

Abdennaceur Kachouri, Thierry Val, Abdelfatteh Lachtar, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), École Nationale d'Ingénieurs de Sfax - ENIS (TUNISIA), and Université de Sfax (TUNISIA)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Walking stick, Computer science, Internet of Things, Interoperability, Système d'exploitation, Réseaux et télécommunications, Context (language use), 02 engineering and technology, 01 natural sciences, Industrial and Manufacturing Engineering, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Smart city, 11. Sustainability, 0202 electrical engineering, electronic engineering, information engineering, Telemetry, Open systems, Middleware, Patient monitoring, MQTT, business.industry, Node (networking), 010401 analytical chemistry, 020206 networking & telecommunications, Systèmes embarqués, 0104 chemical sciences, Machine to machine, Queueing theory, Geriatrics, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Message queue, Protocols, Smart cities, Computer network
Abstract

International audience; With the rapid surge of M-Health and smart city systems, the need to accommodate sensors and actuators to achieve effective automation turns out to be imposed, for an efficient machine-to-machine communication to be maintained. In this regard, the key elements necessary for a successful M-Health system to take place are discovered to be the power consumption and interoperability maintaining factors. In this context, the present study is conducted to devise a special elderly tracking and monitoring system, closely connected to a walking stick device. The proposed design involves a cane cased transmitter node, enabling to send data related to the position and the state of the elderly to a base station, through implementation of the LoRa technology. The latter would then apply the message queuing telemetry transport (MQTT) protocol to interact with the environment once a fall proves to take place. For the purpose of evaluating the advanced design associated coverage range and power consumption rate, as enhanced via LoRa network, several experimental tests have been administered. The achieved results appear to reveal that the suggested architecture recorded average covered area turns out to be of the rate of 6 km2.

Published
2020
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3. Performances Analysis of a System of Localization by Angle of Arrival UWB Radio

Author

Salick Diagne, Abdou Karim Farota, Thierry Val, Ognadon Assogba, Bouya Diop, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université Gaston Berger de Saint-Louis - UGB (SENEGAL), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Université Gaston Berger de Saint-Louis Sénégal (UGB), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, Real-time computing, Système d'exploitation, 0211 other engineering and technologies, Réseaux et télécommunications, Context (language use), 02 engineering and technology, Signal, Set (abstract data type), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], UWB, Architectures Matérielles, Angle of arrival, 0202 electrical engineering, electronic engineering, information engineering, PDoA, 021103 operations research, Observational error, Bandwidth (signal processing), 020206 networking & telecommunications, Systèmes embarqués, Angle of Arrival (AoA), Localization, Temporal resolution, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Actuator
Abstract

International audience; The increasingly widespread use of sensor and actuator networks and in general of the Internet of Things (IoT) in several areas of precision, imposes upon localization systems that can often equip them with a robust and more precise localization. It is in this sense that UWB technology has proved to be one of the most powerful communication technologies for these localization systems; thanks, in particular to the bandwidth occupied instantaneously by the signal allowing a very fine temporal resolution. Constructors have set up localization kits based on various technologies. These kits facilitate in a way the work of localization of users. In this paper, we present results on the performance study of the Decawave PDoA Kit. This Kit uses the PDoA (Phase Difference of Arrival) to determine the Angle of Arrival (AoA) parameter with UWB technology. This study is in context of localization by AoA for an application to protect agricultural crops against grain-eating birds. The results of the study show overall AoA measurement errors around 10 degrees in an ideal environment.

Published
2020
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4. POUCET: A Multi-Technology Indoor Positioning Solution for Firefighters and Soldiers

Author

Quentin Vey, Francois Spies, Baptiste Pestourie, Denis Genon-Catalot, Adrien Van Den Bossche, Thierry Val, Rejane Dalce, Julien Schrive, Val, Thierry, Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Conception et d'Intégration des Systèmes (LCIS), Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), and Université Fédérale Toulouse Midi-Pyrénées

Subjects
[INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], UWB, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Sensor Fusion, Indoor Positioning, Radio Positioning, LoRa
Abstract

International audience; A novel multi-technology indoor positioning system, Poucet, designed for military and firefighter operations, is introduced in this paper. A mobile agent, wearing a lightweight tracker, is located in real-time during indoor operations through a combination of outdoor stations and indoor beacons dropped by the agent on his way. Beacons and trackers integrate multiple radio positioning technologies, including Global Positioning System, (Long range Radio (LoRa 868MHz and 2.4 GHz), Ultrawide-band (UWB), and altimeters. Poucet's distributed architecture is presented along with the main features of each of the technologies used. A multi-input fusion algorithm provides continuous and reliable positioning. We report experimental results obtained during benchmarks scenarios conducted by the French National Defense on the presented prototypes.

Published
2021

5. A multi-objective Gray Wolf algorithm for routing in IoT Collection Networks with real experiments

Author

Thierry Val, Sami Mnasri, Sihem Tlili, Val, Thierry, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Faculté des Sciences de Gafsa, Université de Gafsa, University of Tabuk, Université Toulouse - Jean Jaurès (UT2J), Taif University, IEEE Western Saudi Arabia Section, and IEEE Western Saudi Arabia Section - Computer Society Chapter

Subjects
Multiobjective Grey Wolf, Optimization problem, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], business.industry, Computer science, Distributed computing, media_common.quotation_subject, Process (computing), 020206 networking & telecommunications, Context (language use), 02 engineering and technology, Prototyping, Optimization I, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], IoT Collection Networks, 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Network performance, Quality (business), Routing (electronic design automation), Internet of Things, business, IoT routing, media_common
Abstract

International audience; The routing is a real-world engineering problem in IoT Collection Networks. It has a direct impact on the network performance. The routing problem can be treated as a multi-objective optimization problem. Our objective is then to study the IoT routing problem using the Multi-Objective Grey Wolf Optimizer (MOGWO) [1], which consists in translating the routing process into a multi-objective optimization problem and implementing its execution with the MOGWO. In this context, the experimental study showed that the MOGWO provides better quality of routing (higher lifetime of the network, more efficient delivery delay and higher number of neighbors).

Published
2021

6. Built In-Stack Localisation Services with ALO

Author

Thierry Val, Adrien van den Bossche, Rejane Dalce, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
Ranging protocols, Computer science, Wireless ad hoc network, business.industry, Node (networking), Routing table, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Testbed, 020206 networking & telecommunications, Ranging, 02 engineering and technology, Protocol stack, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0202 electrical engineering, electronic engineering, information engineering, Overhead (computing), Localisation & Positionning, 020201 artificial intelligence & image processing, Time Of Flight, business, Wireless sensor network, Index Terms-Localisation Service, Computer network
Abstract

International audience; Localisation is a major topic in the Wireless Sensor Networks and the Internet Of Things. This Work-in-Progress paper introduces ALO, an Ad-hoc Localisation Object proposed to help in designing in-stack localisation services, i.e. a service that enables the computation of mobile node positions, relying only on information from the protocol stack such as signal properties, RSSI, message timestamps, neighbour tables and routing tables. The paper presents ALO and then focuses on the implementation of a Time-Of-Flight ranging process using ALO. A suitable ranging protocol, minimizing overhead, is presented and evaluated on the LocURa4IoT testbed, using Ultra-Wide Band (UWB)-based wireless sensor nodes. The results show that the ranging accuracy is under 20cm in indoor Line of Sight conditions, using this ranging protocol included in regular traffic messages, instead of using dedicated ranging messages.

Published
2020
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7. A distributed algorithm for range-based localization in sparse wireless networks

Author

Thierry Val, Adrien van den Bossche, Quentin Vey, Rejane Dalce, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), and Val, Thierry

Subjects
[INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Computer science, Wireless network, business.industry, Distributed computing, Location awareness, 020206 networking & telecommunications, 020302 automobile design & engineering, Context (language use), 02 engineering and technology, Network density, computer.software_genre, Range (mathematics), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0203 mechanical engineering, Distributed algorithm, 0202 electrical engineering, electronic engineering, information engineering, Wireless, business, computer
Abstract

International audience; Wireless nodes localization has become a major research theme in recent years. Distributed and collaborative solutions are particularly interesting since the nodes can compute their own localisation without depending on external computational resources. In this paper, we present the context of distributed and cooperative localisation and the principles of a distributed Force-Based localisation algorithm. We then present an original algorithm: UWL (Uncertainty Weighted Localiza-tion). A performance evaluation of UWL has been conducted by simulation and the results are compared to the well-known PPE algorithm. The results show that UWL performs better than PPE on a scenario where a comparison with PPE is possible. On two others scenarios where the number of anchors is limited, the localisation accuracy depends on the network density; With a medium connectivity, the localisation accuracy is below 1m for 99% of the nodes, even though none of them is within range of more than 1 anchor.

Published
2020

8. Connectivity Based DV-Hop Localization for Internet of Things

Author

Fu Xiao, Feng Shu, Thierry Val, Linqing Gui, Yang Zhou, Nanjing University of Science and Technology (NJUST), Nanjing University of Posts and Telecommunications [Nanjing] (NJUPT), IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), and Université Fédérale Toulouse Midi-Pyrénées

Subjects
Optimization problem, Computational complexity theory, Linear programming, Computer Networks and Communications, business.industry, Computer science, Distributed computing, DV-Hop, Internet of Things, Aerospace Engineering, 020302 automobile design & engineering, 02 engineering and technology, Hop (networking), Spread spectrum, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0203 mechanical engineering, Range-free, Localization, Automotive Engineering, Electrical and Electronic Engineering, business
Abstract

International audience; Due to the cost-effective advantage, range-free localization schemes are attractive for low-cost Internet of Things applications. As a distinguishing range-free scheme, DV-Hop localization can localize those unknown nodes which have less than 3 or even no neighbor anchors. However, the localization results by existing DV-Hop based algorithm are found to be inconsistent with the real connectivity between nodes. The inconsistency inspires us to propose two algorithms to improve localization accuracy. First a Centralized Connectivity-based DVHop (CCDV-Hop) algorithm is proposed to optimize the accuracy of DV-Hop localization. Establishing an optimization problem which takes the real connectivity between any two nodes as the constraints, the proposed algorithm can make the localization results conform to the real connectivity. Then an algorithm with lower complexity is proposed, namely Distributed Connectivitybased DV-Hop (DCDV-Hop) algorithm, which can obtain nearoptimal localization performance in distributed networks. Without including the connectivity of all nodes, the constraints in the proposed DCDV-Hop algorithm only consider the real connectivity within two hops. Simulation results show that despite higher complexity, the proposed algorithms can achieve much better accuracy than other DV-Hop based methods.

Published
2020
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9. IoT networks 3D deployment using hybrid many-objective optimization algorithms

Author

Thierry Val, Nejah Nasri, Adrien van den Bossche, Malek Alrashidi, Sami Mnasri, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'Analyse et Commande des Systèmes (LACS), Faculté des Sciences Mathématiques, Physiques et Naturelles de Tunis (FST), Université de Tunis El Manar (UTM)-Université de Tunis El Manar (UTM), Laboratoire Toulousain de Technologie et d'Ingénierie des Systèmes (LATTIS), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J), Université Toulouse - Jean Jaurès (UT2J), IUT Toulouse 2 Blagnac, Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-IUT Toulouse 2 Blagnac, Université de Toulouse (UT)-Université de Toulouse (UT), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), École Nationale d'Ingénieurs de Sfax - ENIS (TUNISIA), University of Tabuk (SAUDI ARABIA), and Université de Sfax (TUNISIA)

Subjects
Scheme (programming language), [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Experimental validation, Control and Optimization, Computer Networks and Communications, Computer science, Distributed computing, Algorithme et structure de données, 3D indoor redeployment, [INFO.INFO-DS]Computer Science [cs]/Data Structures and Algorithms [cs.DS], Système d'exploitation, 0211 other engineering and technologies, Réseaux et télécommunications, 02 engineering and technology, Management Science and Operations Research, Many-objective optimization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Artificial Intelligence, Convergence (routing), 0202 electrical engineering, electronic engineering, information engineering, Decomposition (computer science), Wireless, computer.programming_language, 021103 operations research, Ideal (set theory), Preference incorporation, business.industry, Dimensionality reduction, IoT collection networks, Systèmes embarqués, Software deployment, Mutation (genetic algorithm), 020201 artificial intelligence & image processing, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, computer, Software, Information Systems
Abstract

International audience; When resolving many-objective problems, multi-objective optimization algorithms encounter several difficulties degrading their performances. These difficulties may concern the exponential execution time, the effectiveness of the mutation and recombination operators or finding the tradeoff between diversity and convergence. In this paper, the issue of 3D redeploying in indoor the connected objects (or nodes) in the Internet of Things collection networks (formerly known as wireless sensor nodes) is investigated. The aim is to determine the ideal locations of the objects to be added to enhance an initial deployment while satisfying antagonist objectives and constraints. In this regard, a first proposed contribution aim to introduce an hybrid model that includes many-objective optimization algorithms relying on decomposition (MOEA/D, MOEA/DD) and reference points (Two_Arch2, NSGA-III) while using two strategies for introducing the preferences (PI-EMO-PC) and the dimensionality reduction (MVU-PCA). This hybridization aims to combine the algorithms advantages for resolving the many-objective issues. The second contribution concerns prototyping and deploying real connected objects which allows assessing the performance of the proposed hybrid scheme on a real world environment. The obtained experimental and numerical results show the efficiency of the suggested hybridization scheme against the original algorithms.

Published
2020
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10. 3D Deployment Problem in Wireless Sensor Networks resolved by genetic and ant colony algorithms

Author

Malek Alrashidi, Sami Mnasri, Thierry Val, Nejah Nasri, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Faculté des Sciences de Gafsa, Université de Gafsa, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), University of Tabuk, Université Toulouse - Jean Jaurès (UT2J), and Val, Thierry

Subjects
ACO, Coverage, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Computer science, NSGA-II, Ant colony optimization algorithms, Node (networking), ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Deployment, 020206 networking & telecommunications, 02 engineering and technology, Ant colony, FER, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Software deployment, Ad hoc On-Demand Distance Vector Routing, Localization, 0202 electrical engineering, electronic engineering, information engineering, RSSI, 020201 artificial intelligence & image processing, Routing (electronic design automation), Wireless sensor network, Protocol (object-oriented programming), Algorithm
Abstract

International audience; Wireless Sensor Networks (WSN) is an evolving field of research with various applications. Deploying sensors is a decisive operation that greatly influences the performance and the functioning of the network. Comparing the 2D deployment with the 3D one, the latter is more complex because of its ability to attend more constraints imposed by real problems. On this article, we discuss the 3D node positioning problem, while minimizing the global number of sensors, the consumption levels of energy, and maximizing the covered area and the hybrid localization rate based on the 3D DV-HOP protocol and the RSSI. We seek to solve our problem by choosing the ideal 3D locations to add nomad nodes to achieve the mentioned objectives. An approach based on variants of optimization algorithms based on the NSGA-II algorithm [1] and the ACO algorithm [2] is proposed. The simulation model considers the implementation of the IEEE 802.15.4 standard, and a reactive AODV based routing layer. The results of simulations with OMNeT++ indicate the sustainability of the tested algorithms (NSGA-II, ACO).

Published
2020

11. DV-Hop Localization With Protocol Sequence Based Access

Author

Feng Shu, Huang Xinyu, Fu Xiao, Wei Jun, Yijin Zhang, Linqing Gui, Thierry Val, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Nanjing University of Science and Technology - NUST (CHINA), Nanjing University of Posts and Telecommunications - NJUPT (CHINA), Southeast University - SEU (CHINA), National Mobile Communications Research Laboratory - NCRL (Nanjing, Chine), Institut National Polytechnique de Toulouse - INPT (FRANCE), Nanjing University of Information Science and Technology (NUIST), Nanjing University of Posts and Telecommunications, National Mobile Communications Research Laboratory [Jiangsu], Southeast University [Jiangsu], Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Protocol sequence, Computer Networks and Communications, Computer science, Système d'exploitation, Time division multiple access, Réseaux et télécommunications, Aerospace Engineering, Access control, 02 engineering and technology, Broadcasting, Distance Vector Hop (DV-Hop), Hop (networking), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0203 mechanical engineering, Architectures Matérielles, Computer Science::Networking and Internet Architecture, 0202 electrical engineering, electronic engineering, information engineering, Electrical and Electronic Engineering, business.industry, Network packet, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, 020302 automobile design & engineering, 020206 networking & telecommunications, Systèmes embarqués, Range-free, Localization, Automotive Engineering, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Computer network
Abstract

International audience; Among typical range-free localization schemes for sensor networks, DV-Hop has its distinguishing advantage of the capability to localize unknown nodes, which have less than three or even no neighbor anchors. However, existing DV-Hop based localization methods have not considered the problem of packet collisions, which can frequently happen during the throughout-whole-network broadcast of numerous data packets at the first two steps of DV-Hop. In order to effectively improve the success rate of packet transmission between nodes, this paper proposes a medium access control (MAC) method based on Chinese Remainder Theorem (CRT) protocol sequence for DV-Hop localization. First, a broadcasting strategy is designed for the proposed MAC method. Then, dedicated procedures for both anchor nodes and unknown nodes are presented to implement the designed MAC method in DV-Hop localization. Through simulation and evaluation, the performance of DV-Hop localization with the proposed MAC method is thoroughly investigated. Simulation results show that when the number of protocol sequences is larger than a certain number, the proposed MAC method can provide DV-Hop with better localization accuracy than E-CSMA/CA, while keeping similar localization time.

Published
2018
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12. Network Lifetime Management in Wireless Sensor Networks

Author

Adrien van den Bossche, Thierry Val, Ahmed Zouinkhi, Mohamed Naceur Abdelkrim, Hayfa Ayadi, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Gabès (TUNISIA), Institut National Polytechnique de Toulouse - INPT (FRANCE), Modélisation, Analyse et Commande de Systèmes - MACS (Gabès, Tunisie), Université de Gabès, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], 0301 basic medicine, Computer science, Système d'exploitation, Réseaux et télécommunications, 02 engineering and technology, 7. Clean energy, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 03 medical and health sciences, Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Wireless, Electrical and Electronic Engineering, Instrumentation, Auto-adaptation, IOT, Energy, business.industry, Node (networking), 802.15.4, 020206 networking & telecommunications, Energy consumption, Systèmes embarqués, WSN, 030104 developmental biology, Transmission (telecommunications), Duty cycle, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, The Internet, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Energy (signal processing), Computer network
Abstract

International audience; The energy consumption in Wireless Sensor Networks (WSNs) stills a very interesting challenge in both the industrial and the research field. The IEEE 802.15.4 standard is an excellent result of the collaboration between these both fields in order to well managing the energy consumed in the node by controlling its duty cycle. It presents the most efficient standards for low energy consumption that is why it is considered as the main technology for the Internet of Thing (IoT). Our work consists mainly of validating through an experimental testbed the two methods proposed. The first approach proposed is about computing the energy consumed by the node in its different transmission states with more efficiency. Although, the second approach deals with computing its most convenable duty cycle basing on the remaining energy in the battery of the node which presents a very interesting issue for the energy consumption in wireless communication.

Published
2018
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13. Comparative Analysis of Ranging Protocols for Localization by UWB in Outdoor

Author

Bouya Diop, Salick Diagne, Abdou Karim Farota, Thierry Val, Laboratoire des Sciences de l’atmosphère et des Océans (LSAO), Université Gaston Berger de Saint-Louis Sénégal (UGB), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université Gaston Berger de Saint-Louis - UGB (SENEGAL), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, ToF, Real-time computing, Système d'exploitation, Réseaux et télécommunications, Ultra-wideband, 02 engineering and technology, Field (computer science), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], UWB, Outdoor location, Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Wireless, DecaWiNo, TWR, Ranging, business.industry, Process (computing), Skew, 020206 networking & telecommunications, Systèmes embarqués, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Actuator, business, Wireless sensor network
Abstract

International audience; The rapid evolution of technology in the field of wireless telecommunications and micro components using MEMS technologies (Micro-electromechanical systems) has contributed to the expansion and rapid development of wireless sensor networks (WSN). This rapid development has contributed to the appearance of sensor and actuator networks (WSAN) or even to the Internet of Things with DL_IoT (Device Layer-Internet of Things). This rapid evolution of WSN is due to the enthusiasm generated by this last in industry and research. This new technology is used in several applications, particularly in the outdoor location of communicating nodes. The process of distance calculation between nodes (ranging) is a primordial phase for a precise location of these nodes. This paper presents the result of measurements do with three ranging protocols (TWR, TWR_Skew and SDS-TWR) implemented on DecaWiNo nodes. DecaWiNo nodes use the Ultra Wide Band (UWB) radio links, proposed by the IEEE 802.15.4 standard amendment of the year 2007, which provides a high performance ranging by ToF (Time of Flight). The results are very promising with precision errors of the order of 50 cm over 20 meters.

Published
2018
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14. Firefighter indoor localization (POUCET)

Author

Viken Kojakian, Denis Genon-Catalot, Albert Da Silva, Adrien van den Bossche, François Spies, Thierry Val, Baptiste Pestourie, Rejane Dalce, Nicolas Fourty, Vincent Chapuis, Christelle Bloch, Quentin Vey, Michel Stenta, Centre National de la Recherche Scientifique - CNRS (FRANCE), Ecole Nationale Supérieure de Mécanique et des Microtechniques - ENSMM (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Grenoble Alpes - UGA (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Franche-Comté (FRANCE), Université de Technologie de Belfort-Montbéliard - UTBM (FRANCE), Digichrone (FRANCE), Geoconcept SAS (FRANCE), Laboratoire de Conception et d'Intégration des Systèmes (LCIS), Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), GEOCONCEPT, and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
Computer science, business.industry, Réseaux et télécommunications, 020206 networking & telecommunications, 02 engineering and technology, Computer security, computer.software_genre, Modélisation et simulation, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Systèmes embarqués, LoRa, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], UWB, Software deployment, Localization, 0202 electrical engineering, electronic engineering, information engineering, Wireless, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Localization system, Internet of Things, business, computer, Protocols
Abstract

International audience; Indoor positioning is a growing demand for many uses: orientation in subways, shopping promotions, Internet of Things (IoT). These radio systems need dedicated wireless infrastructure deployment in order to provide users orientation information. In this paper, we present an emergency hybrid localization system which could help policemen or firefighters find their ways in a building on fire for rescue operations.

Published
2020

15. Genetic-Voronoi algorithm for coverage of IoT data collection networks

Author

Wajih Abdallah, Sami Mnasri, Thierry VAL, Val, Thierry, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université de Gafsa, Institut Supérieur d'arts et métiers de Gafsa (ISAM G), University of Tabuk, Université Toulouse - Jean Jaurès (UT2J), Arab Academy for Science, Technology & Maritime Transport (AASTMT), Computer Scientific Society (CSS), and IEEE Alexandria subsection

Subjects
Optimization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Genetic Algorithm, Coverage, Voronoi Diagram, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Deployment, IoT collection networks
Abstract

International audience; IoT data collection networks, formerly known as wireless sensor networks, have become one of the most active areas of research in the field of information technology. The deployment of connected objects represents a fundamental phase on the establishment of IoT collection networks. The IoT deployment problem consists in positioning all the sensors constituting the network. This paper proposes an approach maximizing the coverage of a region of interest by the hybridization between the Voronoi diagram and the genetic algorithm. The first algorithm divides the field into cells and generates initial solutions (positions of deployed IoT objects). The latter algorithm is used to improve these positions in order to maximize the overall coverage of the region of interest. Obtained results reveal that the performance of the hybrid algorithm exceeds that of the original algorithms in terms of coverage degree, RSSI, lifetime and number of neighbor of objects.

Published
2020

16. A new multi-agent particle swarm algorithm based on birds accents for the 3D indoor deployment problem

Author

Nejah Nasri, Sami Mnasri, Adrien van den Bossche, Thierry Val, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), École Nationale d'Ingénieurs de Sfax - ENIS (TUNISIA), Université de Sfax (TUNISIA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'Analyse et Commande des Systèmes (LACS), Faculté des Sciences Mathématiques, Physiques et Naturelles de Tunis (FST), Université de Tunis El Manar (UTM)-Université de Tunis El Manar (UTM), Université Toulouse - Jean Jaurès (UT2J), IUT Toulouse 2 Blagnac, and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
0209 industrial biotechnology, Computer science, Evolutionary algorithm, Réseaux et télécommunications, 02 engineering and technology, computer.software_genre, Machine Learning, Many-objective optimization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 020901 industrial engineering & automation, Local optimum, Architectures Matérielles, Stress (linguistics), 0202 electrical engineering, electronic engineering, information engineering, Cluster Analysis, Instrumentation, Multi-agent, education.field_of_study, 3D indoor deployment, Behavior, Animal, Applied Mathematics, Particle swarm optimization, Systèmes embarqués, Computer Science Applications, Algorithms, Experimental validation, Population, Système d'exploitation, Context (language use), Machine learning, Birds, Imaging, Three-Dimensional, Cluster (physics), Animals, Computer Simulation, Electrical and Electronic Engineering, education, Ecosystem, business.industry, 020208 electrical & electronic engineering, DL-IoT collection networks, Reproducibility of Results, Informatique et langage, Models, Theoretical, Control and Systems Engineering, Software deployment, Artificial intelligence, Vocalization, Animal, business, computer, Accent based PSO, Software
Abstract

International audience; The 3D indoor deployment of sensor nodes is a complex real world problem, proven to be NP-hard and difficult to resolve using classical methods. In this context, we propose a hybrid approach relying on a novel bird's accent-based many objective particle swarm optimization algorithm (named acMaPSO) to resolve the problem of 3D indoor deployment on the Internet of Things collection networks. The new concept of bird's accent is presented to assess the search ability of particles in their local areas. To conserve the diversity of the population during searching, particles are separated into different accent groups by their regional habitation and are classified into different categories of birds/particles in each cluster according to their common manner of singing. A particle in an accent-group can select other particles as its neighbors from its group or from other groups (which sing differently) if the selected particles have the same expertise in singing or are less experienced compared to this particle. To allow the search escaping from local optima, the most expert particles (parents) ''die'' and are regularly replaced by a novice (newborn) randomly generated ones. Moreover, the hybridization of the proposed acMaPSO algorithm with multi-agent systems is suggested. The new variant (named acMaMaPSO) takes advantage of the distribution and interactivity of particle agents. Experimental, numerical and statistical found results show the effectiveness of the two proposed variants compared to different other recent state-of-the-art of many-objective evolutionary algorithms.

Published
2019
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17. Improved many-objective optimization algorithms for the 3D indoor deployment problem

Author

Adrien van den Bossche, Thierry Val, Nejah Nasri, Sami Mnasri, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'Analyse et Contrôle des Systèmes Complexes [Paris] (LACSC), ECE Paris, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
Mathematical optimization, 3D indoor deployment, Experimental validation, Multidisciplinary, Computer science, 010102 general mathematics, Evolutionary algorithm, Système d'exploitation, Réseaux et télécommunications, Adaptive operators, Context (language use), Informatique et langage, 01 natural sciences, Systèmes embarqués, Reduction (complexity), Set (abstract data type), Many-objective optimization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Adaptive mutation, Software deployment, Architectures Matérielles, 0101 mathematics, Neighbourhood, Wireless sensor network, Curse of dimensionality
Abstract

International audience; Compared with the two-dimensional deployment, the three-dimensional deployment of sensor networks is more challenging. We studied the problem of 3D repositioning of sensor nodes in wireless sensor networks. We aim essentially to add a set of nodes to the initial architecture. The positions of the added nodes are determined by the proposed algorithms while optimizing a set of objectives. In this paper, we suggest two main contributions. The first one is an analysis contribution where the modelling of the problem is given and a set of modifications is incorporated on the tested multi-objective evolutionary algorithms to resolve the issues encountered when resolving many-objective problems. These modifications concern essentially an adaptive mutation and recombination operators with neighbourhood mating restrictions, the use of a multiple scalarizing functions concept and the incorporation of the reduction in dimensionality. The second contribution is an application one, where an experimental study on real testbeds is detailed to test the behaviour of the enhanced algorithms on a real-world context. Experimental tests followed by numerical results prove the efficiency of the proposed modifications against original algorithms.

Published
2019
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18. Enhancement of the Traffic Differentiation Architecture for WBAN based on IEEE 802.15.4

Author

Hanen Idoudi, Thierry Val, Leila Azouz Saidane, Sabri Khssibi, Adrien van den Bossche, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université de la Manouba - UMA (TUNISIA), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Université de la Manouba [Tunisie] (UMA), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], IEEE 802.15.4, Computer science, Système d'exploitation, Réseaux et télécommunications, QoS, 02 engineering and technology, Domain (software engineering), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Body area network, 0202 electrical engineering, electronic engineering, information engineering, Superframe, Electrical and Electronic Engineering, Layer (object-oriented design), IEEE 802.15, business.industry, Quality of service, Node (networking), 020208 electrical & electronic engineering, 020206 networking & telecommunications, CANet project, Systèmes embarqués, Computer Science Applications, Transmission (telecommunications), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, E-Health, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], WBAN, business, Computer network
Abstract

International audience; In the healthcare domain, Wireless Body Area Network (WBAN) has emerged as a vital technology that is capable of providing better methods to diagnose various hazardous diseases. The CANet projet is a project that proposes alternative monitoring solutions. This paper studies the possibility of transmitting different types of information through an IEEE 802.15.4 MAC layer that not supports the transmission of heterogeneous information. We have proposed an extension to the MAC layer which makes possible the transmission of various information types. This solution designed by "diffrentiation layer" uses a purge function to ensure the use of CAP and CFP by the same node in the same superframe and allows the differentiation between several information. Our results show that our solution is reliable under worst-case.

Published
2018
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19. The 3D indoor deployment in DL-IoT with experimental validation using a particle swarm algorithm based on the dialects of songs

Author

Thierry Val, Nejah Nasri, Sami Mnasri, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), École Nationale d'Ingénieurs de Sfax - ENIS (TUNISIA), Université de Sfax (TUNISIA), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Experimental validation, Computer science, Evolutionary algorithm, Système d'exploitation, NSGA-III, Réseaux et télécommunications, 02 engineering and technology, computer.software_genre, Preference, Set (abstract data type), Many-objective optimization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Dialect based PSO, 3D indoor deployment, business.industry, Testbed, Particle swarm optimization, 020206 networking & telecommunications, Prototyping, Systèmes embarqués, Software deployment, DL-IoT, 020201 artificial intelligence & image processing, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Data mining, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Internet of Things, business, Wireless sensor network, computer
Abstract

International audience; The use of real prototyping systems allows implementing real-world deployments which permit evaluating new protocols, algorithms and network solutions. This study investigates the problem of 3D indoor redeployment of connected objects in IoT collection networks. The objective is to choose the right positions in which connected objects are added to an initial configuration, while optimizing a set of objectives. To solve this problem, a novel bird's dialect-based particle swarm optimization algorithm (named acMaPSO) is introduced. The new concept of bird's dialect is based on a set of birds which are separated into different dialect groups by their regional habitation and are classified into groups according to their common manner of singing. The obtained numerical results and the real experiments on our testbed prove the effectiveness of the two proposed variants compared with the standard PSO algorithm and a recent state of art of many-objective evolutionary algorithms: the NSGA-III.

Published
2018
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20. A multimode and multithreshold approach for energy efficiency in Internet of things systems

Author

Thierry Val, Boumedyen Boussaid, Ahmed Zouinkhi, M. Naceur Abdelkrim, Hayfa Ayadi, Service d'immunologie, Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Gabès (TUNISIA), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
IEEE 802.15.4, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], 0209 industrial biotechnology, Internet of things, Computer Networks and Communications, Computer science, Système d'exploitation, Réseaux et télécommunications, Topology (electrical circuits), 02 engineering and technology, lcsh:QA75.5-76.95, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 020901 industrial engineering & automation, Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Cluster tree, Wireless, Superframe, business.industry, Node (networking), General Engineering, 020206 networking & telecommunications, Energy consumption, Systèmes embarqués, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, lcsh:Electronic computers. Computer science, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Personal area network, business, Wireless sensor network, Efficient energy use, Computer network, energy
Abstract

International audience; The IEEE 802.15.4 is designed for wireless personal area networks. Indeed, wireless personal area network turns out to help greatly in maintaining a flexible mode of communication within limited area networks. It is in this context that our present study can be set, in which the beacon-enabled mode is enabled with cluster tree topology to reach the scope of a rather extended network, whereby the network turns out to be clustered into several subgroups. Every single subgroup is characterized by its specific duty cycle which is configured by its correspondent personal area network coordinator. Therefore, many modes are enabled in the same network. Based on a very special mathematical model developed by us for energy consumption, the personal area network coordinator detects the actual level of energy in the battery of node. Then, an interesting comparison is made with the multiple thresholds which are already set. After that, both beacon order and superframe order (the standard IEEE 802.15.4 parameters) are recomputed with reference to the remaining energy.

Published
2018
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21. Specificities of the LoRa™ Physical Layer for the Development of New Ad Hoc MAC Layers

Author

Thierry Val, Adrien van den Bossche, Nicolas Gonzalez, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), SNOOTLAB (FRANCE), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Nicolas Montavont, Georgios Z. Papadopoulos, and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, Système d'exploitation, Wino, Réseaux et télécommunications, 02 engineering and technology, 01 natural sciences, Image (mathematics), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Computer Science::Networking and Internet Architecture, 0202 electrical engineering, electronic engineering, information engineering, Wireless, IOT, business.industry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, 010401 analytical chemistry, Physical layer, Window (computing), Plateforme, 020206 networking & telecommunications, Object (computer science), Systèmes embarqués, Lora, 0104 chemical sciences, Spread spectrum, Capteurs, Range (mathematics), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Computer network
Abstract

The Internet of Things and particularly energy constraint object revealed these last years some radio frequencies technologies which allow to realize wireless transmissions at long range and with low energy. This change of paradigm makes tip over the problems of multi-hop networks to multi-channel MAC networks. The Open image in new window technology arises from this sphere of influence by using the spread spectrum to reach the expected performances. This physical layer is very original compared with the physical layers used for a long time with the IEEE 802.15.4 standard. This article highlights the specificities of the Open image in new window physical layer to design new MAC layers for the ad hoc Internet of Things.

Published
2018
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22. Energy management in WSN: IEEE 802.15.4 unslotted mode

Author

M. Naceur Abdelkrim, Thierry Val, Boumedyen Boussaid, Ahmed Zouinkhi, Hayfa Ayadi, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Gabès (TUNISIA), Institut National Polytechnique de Toulouse - INPT (FRANCE), Modélisation, Analyse et Commande de Systèmes - MACS (Gabès, Tunisie), Université de Gabès, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
0301 basic medicine, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], IEEE 802.15.4, Computer science, Energy management, Système d'exploitation, Réseaux et télécommunications, 02 engineering and technology, 03 medical and health sciences, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Unslotted CSMA/CA, Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Wireless, IEEE 802.15, Duty cycle, Energy, business.industry, Node (networking), 020206 networking & telecommunications, Systèmes embarqués, WSN, 030104 developmental biology, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Energy (signal processing), Computer network, Efficient energy use
Abstract

International audience; Wireless Sensor Networks suffer from many problems but energy efficient always presents the most critical trouble in this field. Many approaches and technologies were invented in order to reduce the energy consumed such as the IEEE 802.15.4. The IEEE 802.15.4 is invented for low power and Low Rate Wireless Personal Area Networks (LRWPANs). It has been updated many times in order to provide a suitable solution for this problem. It presents two different modes which are the beacon enabled mode and the non beacon enabled mode. This work is interested in the non beacon enabled mode. The paper proposes a new model to compute the energy consumed by the node in the CSMA/CA protocol specially in the unslotted algorithm. Then an auto-adaptation process is enabled. So the last quantity of energy in the battery is adapted to the activity period of the node in the network by intervening in its duty cycle in order to postpone its death. The simulation results prove both the efficiency of our consumption energy model in addition to the performance of our intervention which lead to reduce the consumed energy by node and to increase its lifetime.

Published
2018

23. N-TWR: An Accurate Time-of-flight-based N-ary Ranging Protocol for Ultra-Wide Band

Author

Thierry Val, François Despaux, Adrien van den Bossche, Katia Jaffrès-Runser, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique (Toulouse) (Toulouse INP), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer Networks and Communications, Computer science, Real-time computing, Système d'exploitation, Ultra-wideband, Réseaux et télécommunications, 02 engineering and technology, 01 natural sciences, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Protocol (object-oriented programming), SIMPLE (military communications protocol), business.industry, Node (networking), 010401 analytical chemistry, Physical layer, 020206 networking & telecommunications, Ranging, Systèmes embarqués, Wireless sensor networks, 0104 chemical sciences, Ultra-Wide Band (UWB)- Localization, Hardware and Architecture, Global Positioning System, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Trilateration, Software
Abstract

International audience; In the last decade, wireless positioning systems have drawn a strong interest from a research point of view, especially for indoor environments where Global Positioning Systems (GPS) is not available. As an alternative, emerging applica- tions relying on Ultra-Wide Band (UWB) communication technology have been proposed to o er a ranging accuracy in the order of some dozens of centimeters. Indeed, UWB radios' increased accuracy originates in the high time resolu- tion of UWB signals that can be leveraged to measure precisely travel times of signals (e.g. Time of Flight, ToF). ToF can be easily translated to inter-node distance. In this work we propose N-TWR, a ToF-based N-ary ranging protocol created for localization using UWB. The proposed N-TWR protocol is based on the estimation of the ToF between a target node to be localized (which may be mobile or static) and a set of N anchors. It has been designed to mini- mize the number of messages exchanged between all nodes compared to a naive solution that exploits the state-of-the-art UWB ranging method. Validation has been made using experiments carried out in our Open Source Framework, DecaDuino, which enables fast prototyping of protocols sitting on top of UWB Physical layer. The N-ary ranging provided by N-TWR achieves the same level of accuracy as the naive protocol exploiting SDS-TWR but using four times less messages. We exhibit as well that N-TWR can be e ciently leveraged to design a simple and elegant trilateration localization algorithm.

Published
2018
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24. A comparative analysis with validation of NSGA-III and MOEA/D in resolving the 3D indoor redeployment problem in DL-IoT

Author

Sami Mnasri, Adrien van den Bossche, Thierry Val, Nejah Nasri, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Institut Universitaire de Technologie - IUT (Blagnac, France), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), École Nationale d'Ingénieurs de Sfax - ENIS (TUNISIA), Université de Sfax (TUNISIA), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], 0209 industrial biotechnology, Coverage, Computer science, Distributed computing, Système d'exploitation, NSGA-III, Evolutionary algorithm, Access method, Réseaux et télécommunications, MOEA/D, 02 engineering and technology, Solid modeling, Keywords 3D indoor deployment, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 020901 industrial engineering & automation, Architectures Matérielles, Ad hoc On-Demand Distance Vector Routing, 0202 electrical engineering, electronic engineering, information engineering, RSSI, Protocol (object-oriented programming), Hybrid localization, WiNo nodes, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Physical layer, Systèmes embarqués, FER, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Routing (electronic design automation), Wireless sensor network, Simulation
Abstract

International audience; Compared to the two-dimensional one, the three-dimensional deployment in WSNs (wireless sensor networks) is more complex and real. In this paper, the problem of 3D positioning of nodes is studied while minimizing the number of nodes and the consumption of energy; and maximizing the coverage area and the localization rate. Indeed, the aim is to choose the ideal 3D positions in which new nodes are added while optimizing the mentioned objectives. The proposed approach is based on two evolutionary algorithms (MOEA/D and NSGA-III). The simulation model takes into account the implementation of a 433 MHz physical layer, a non-coordinated IEEE 802.15.4 CSMA/CA access method, and a reactive AODV based protocol for routing layer. The obtained results of the simulations with OMNeT++ are presented to prove the effectiveness of the proposed approach.

Published
2017
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25. The 3D Redeployment of Nodes in Wireless Sensor Networks with Real Testbed Prototyping

Author

Nejah Nasri, Adrien van den Bossche, Thierry Val, Sami Mnasri, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, Distributed computing, 3D indoor redeployment, Système d'exploitation, NSGA-III, Réseaux et télécommunications, 02 engineering and technology, Many-objective optimization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Preference incorporation, business.industry, Testbed, Prototyping, Systèmes embarqués, Key distribution in wireless sensor networks, Software deployment, DL-IoT, 020201 artificial intelligence & image processing, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Realization (systems), Computer network
Abstract

In wireless sensor networks (WSNs), prototyping systems facilitate the realization of real node deployment, enabling to test new algorithms, protocols, and networking solutions. This paper investigates the 3D indoor redeployment problem in WSNs by finding the positions where nodes should be added in order to improve an initial deployment while optimizing different objectives. For this purpose, an approach based on a recent evolutionary optimization algorithm (NSGA-III) is used. The latter algorithm is hybridized with a strategy of incorporating of the user preferences (PI-EMO-VF). The major contributions of this work are as follows: testing the NSGA-III efficiency in the case of real world problems, comparing it with another recent many-objective algorithm (MOEA/DD), and incorporating the concept of preferences of users into NSGA-III. The real experiments performed on our testbeds indicate that the results given by the proposed algorithm are better than those given by other recent optimization algorithms such as MOEA/DD.

Published
2017

26. Inter-flow and intra-flow interference mitigation routing in wireless mesh networks

Author

Thierry Val, Hanen Idoudi, Leila Azouz Saidane, Chiraz Houaidia, Adrien van den Bossche, Centre National de la Recherche Scientifique - CNRS (FRANCE), Ecole Nationale des Sciences de l'Informatique - ENSI (TUNISIA), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université de la Manouba - UMA (TUNISIA), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Université de la Manouba [Tunisie] (UMA), École Nationale des Sciences de l'Informatique [Manouba] (ENSI), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Université de la Manouba [Tunisie], Ecole Nationale des sciences de l'informatique [Manouba] ( ENSI ), Institut de recherche en informatique de Toulouse ( IRIT ), Institut National Polytechnique [Toulouse] ( INP ) -Université Toulouse 1 Capitole ( UT1 ) -Université Toulouse - Jean Jaurès ( UT2J ) -Université Paul Sabatier - Toulouse 3 ( UPS ) -Centre National de la Recherche Scientifique ( CNRS ), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Dynamic Source Routing, Computer science, Distributed computing, Routing table, [ INFO.INFO-NI ] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Enhanced Interior Gateway Routing Protocol, Réseaux et télécommunications, Geographic routing, 02 engineering and technology, Metrics, Routing Information Protocol, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0508 media and communications, Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Computer Science::Networking and Internet Architecture, [ INFO.INFO-ES ] Computer Science [cs]/Embedded Systems, Hierarchical routing, Static routing, Zone Routing Protocol, Wireless mesh network, Quality of service, 05 social sciences, Path vector protocol, Systèmes embarqués, Link-state routing protocol, Multipath routing, [ INFO.INFO-OS ] Computer Science [cs]/Operating Systems [cs.OS], Hazy Sighted Link State Routing Protocol, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Computer network, Routing protocol, Computer Networks and Communications, Equal-cost multi-path routing, Système d'exploitation, Wireless Routing Protocol, QoS, 050801 communication & media studies, Throughput, Available bandwidth, Destination-Sequenced Distance Vector routing, Routing, business.industry, Policy-based routing, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, 020206 networking & telecommunications, Optimized Link State Routing Protocol, Routing domain, [ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR], [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Conflict graph, business, Interference
Abstract

International audience; In this paper, we address the problem of QoS support in an heterogeneous multi-rate wireless mesh network. We propose a new routing metric that provides information about link quality, based on PHY and MAC characteristics, including the link availability, the loss rate and the available bandwidth. This metric allows to apprehend inter-flow interferences and avoid bottleneck formation by balancing traffic load on the links. Based on the conflict graph model and calculation of maximal cliques, we define a method to estimate the available bandwidth of a path which considers, in addition, intra-flow interferences. Finally, we propose a routing protocol that supports this metric and we study by simulation its performances compared to different existing routing metrics and protocols. The results revealed the ability of our protocol (LARM) to support the network scalability as well as its ability to choose routes with high throughput and limited delay, thus, better delivery of data traffic.

Published
2017
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27. Real-time monitoring of elderly using their connected walking stick

Author

Abdelfetteh Lachtar, Abdennaceur Kachouri, Thierry Val, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Walking stick, Engineering, IoT, Monitoring, 0206 medical engineering, Acceleration, Gravity, Système d'exploitation, Réseaux et télécommunications, 02 engineering and technology, CANet, Accelerometer, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Computer vision, Assistive device, Simulation, 020203 distributed computing, Leg weakness, business.industry, WiNo, 020601 biomedical engineering, Thresholding, Systèmes embarqués, Magnetometer, Senior citizens, Term (time), Three-dimensional displays, M-Health, Legged locomotion, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Artificial intelligence, False positive rate, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Accelerometers, business
Abstract

International audience; Lots of aging people rely on a cane as a help device to ovoid many problems, such as balance loss and leg weakness, presumed to be at the origin of many fall incidents. In this paper, we present a new design and implementation of Canne3D system, a local monitoring system for elderly using their connected walking stick. Actually, the 3Dcane is modeled through consideration of real-time movements for a thorough understanding of the concerned person's state, including fall detection, steps counting and calculating the distance traveled. We have applied a multi-stage thresholding framework based on the acceleration value. Experiments have revealed that step-detection algorithm appears to be robust in term of detection rate and false positive rate.

Published
2017

28. Auto-management of energy in IoT networks

Author

Thierry Val, Boumedyen Boussaid, Hayfa Ayadi, Mohamed Naceur Abdelkrim, Ahmed Zouinkhi, Université de Gabès, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Gabès (TUNISIA), and Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France)

Subjects
IEEE 802.15.4, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], IoT, Computer Networks and Communications, Computer science, Système d'exploitation, Energy current, Réseaux et télécommunications, Auto-management, 02 engineering and technology, Network topology, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Superframe, Electrical and Electronic Engineering, Energy, business.industry, 020206 networking & telecommunications, Energy consumption, Systèmes embarqués, WSN, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Personal area network, business, Internet of Things, Wireless sensor network, Energy (signal processing), Computer network
Abstract

International audience; Wireless Sensor Network (WSN) based on IEEE 802.15.4 technology continues to gain considerable importance. The present work is based on this standard and a cluster tree network topology. This network is divided into many subgroups each of which is charac- terized by its special IEEE parameters (Beacon Order (BO) and Superframe Order (SO)). A mathematical model for computing energy consumption was proposed to enable the Personal Area Network (PAN) coordinator to detect the current energy level in the bat- tery. The proposed adaptive intervention is based on a comparison between the remaining energy and the diverse thresholds which lead to an auto-management of energy consump- tion. The proposed approach was evaluated using Inetmanet/Omnet++ simulator.

Published
2019
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29. A Hybrid Ant-Genetic Algorithm to Solve a Real Deployment Problem: A Case Study with Experimental Validation

Author

Adrien van den Bossche, Nejah Nasri, Thierry Val, Sami Mnasri, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Université Toulouse - Jean Jaurès (UT2J), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Mathematical optimization, Computer science, 3D indoor redeployment, Système d'exploitation, NSGA-III, Réseaux et télécommunications, 02 engineering and technology, Set (abstract data type), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Genetic algorithm, 0202 electrical engineering, electronic engineering, information engineering, ACO, Ideal (set theory), Ant colony optimization algorithms, Testbed, 020206 networking & telecommunications, Prototyping, Systèmes embarqués, Hybrid algorithm, Software deployment, DL-IoT, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Wireless sensor network
Abstract

International audience; In this paper, we investigate the problem of deploying 3D nodes in a wireless sensor network. The aim is to choose the ideal 3D locations to add new nodes to an initial configuration of nodes, while optimizing a set of objectives. In this regard, our study proposes a new hybrid algorithm which stems from the ant foraging behavior and the genetics. It is based on a recent variant of the genetic algorithms (NSGA-III) and the Ant Colony Optimization algorithm. The obtained numerical results and the simulations compared with experiments prove the effectiveness of the proposed approach.

Published
2017
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30. Synchronizing Tiny Sensors with SISP: a Convergence Study

Author

Thierry Val, Oana Hotescu, Katia Jaffrès-Runser, Adrien van den Bossche, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), and Université Toulouse - Jean Jaurès (UT2J)

Subjects
Computer science, Real-time computing, sync, Système d'exploitation, Synchronizing, Réseaux et télécommunications, 02 engineering and technology, Synchronization, Upper and lower bounds, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Convergence analysis, Convergence (routing), 0202 electrical engineering, electronic engineering, information engineering, Wireless, Protocol (object-oriented programming), SIMPLE (military communications protocol), business.industry, 020208 electrical & electronic engineering, 020206 networking & telecommunications, Systèmes embarqués, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, business, Wireless Sensor Network, Computer network
Abstract

International audience; The SImple Synchronization Protocol (SISP) has been designed for tiny sensors to offer a wireless synchronization service to the network. SISP is completely distributed with a flat architecture. Nodes broadcast a SYNC message periodically that contains the value of their view of a shared clock counter. Every time a SYNC message is received, nodes update their shared clock by averaging it with the clock value embedded in the message. This protocol converges in practice very well, and requires a small amount of energy as SYNC messages can be sent every second only. Moreover, computations are basic, perfectly fitting the tiny sensor platforms needed for the Internet of Things. Its distributed operations enable the network to adjust seamlessly to the appearance or disappearance of other nodes. This paper concentrates on the convergence analysis of this promising protocol. Convergence time and synchronization accuracy are determined analytically, by simulations and by experimenting a real sensor platform. All results show that this protocol offers an accuracy in the order of a few tens of microseconds. Moreover, our analytical derivations capture very well an upper bound on the synchronization accuracy.

Published
2017
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31. Prototyping of a new Multi-channel Multi-hop Access Method without RendezVous

Author

Mahamat Habib Senoussi Hissein, Adrien van den Bossche, Thierry VAL, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Système d'exploitation, WiNo, Réseaux et télécommunications, Medium Access Control, Prototyping, Systèmes embarqués, Multi-hop without RDV, Wireless Sensors Networks, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Multi-channel medium access, Architectures Matérielles, Computer Science::Networking and Internet Architecture, Performance evaluation, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS]
Abstract

International audience; One of the most important issues for wireless LANs is the access and the share of wireless radio medium. Several single-channel MAC protocols have been proposed and address this issue with interesting solutions, but some major problems related to channel access (hidden node, synchronization, propagation of RendezVous...) still persist in a multi-hop transmission context and are still the subject of intensive studies by the scientific community, especially when it is related to extended topologies on distributed Wireless Sensors Networks. This article proposes a new multi-channel MAC for all types of multi-hop wireless network topologies, without RendezVous, its prototyping and performance analysis.

Published
2017

32. Energy efficiency in WSN: IEEE 802.15.4

Author

Ahmed Zouinkhi, M. Naceur Abdelkrim, Thierry Val, Boumedyen Boussaid, Hayfa Ayadi, Modélisation, Analyse et Commande de Systèmes - MACS (Gabès, Tunisie), Université de Gabès, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Gabès (TUNISIA), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
IEEE 802.15.4, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Engineering, Inter-Access Point Protocol, Système d'exploitation, Réseaux et télécommunications, 02 engineering and technology, 01 natural sciences, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS, IEEE 802.15, IEEE 802.11s, business.industry, 010401 analytical chemistry, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, 020206 networking & telecommunications, Energy consumption, Network allocation vector, Systèmes embarqués, WSN, 0104 chemical sciences, IEEE 802.11b-1999, Beacon interval (BI), Superframe duration (SD), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, IEEE 802.11e-2005, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Computer network, Efficient energy use
Abstract

International audience; Nowadays the energy consumption has become a critical challenge in Wireless Sensor Network (WSN). Wireless connection suffer from some weaknesse chiefly fault detection and energy efficiency which stay again the main problems in (WSN). Both was under the scope of research communities and industry engineers. We are interested to the IEEE 802.15.4 standard with beacon enabled mode. IEEE802.15.4 is a protocol designed to Physical (PHY) layer and Medium Access Control (MAC) for WSN. We intervene in the Superfame Duration (SD) which present the main private characteristic of the MAC frame in IEEE 802.15.4 in order to minimise the energy consumption when the energy level in a battery reach a critical level. IN-ETMANET/OMNeT++ simulator is used to present our method.

Published
2016

33. Accurate and Platform-agnostic Time-of-flight Estimation in Ultra-Wide Band

Author

Katia Jaffrès-Runser, Thierry Val, Adrien van den Bossche, François Despaux, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, Real-time computing, 0211 other engineering and technologies, Système d'exploitation, Ultra-wideband, Réseaux et télécommunications, 02 engineering and technology, Signal, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0203 mechanical engineering, Architectures Matérielles, 021103 operations research, business.industry, Ranging, Physical layer, 020302 automobile design & engineering, Clock skew, Localisation, Systèmes embarqués, Time of flight, Ultra-wide band, Embedded system, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network
Abstract

International audience; Emerging applications of Ultra-Wide Band (UWB) combine low to medium rate communications with positioning capabilities allowing centimeter level accuracy in ranging. For positioning systems employing UWB radios, time-based schemes provide very good accuracy due to the high time resolution of UWB signals. These time-based positioning systems rely on measurements of travel times of signal between nodes allowing to estimate the distance between nodes. The standard IEEE 802.15.4a-2007 propose TWR and SDS-TWR time-based protocols for ranging purpose. However, the accuracy of TWR is quite poor due to the effects of clock skews. SDS-TWR mitigates the clock skew error at the expenses of the number of message exchanges, which is increased. In this work, we present a novel approach for accurately estimating the ToF in UWB taking into account the clock skew between nodes while minimising the number of exchanged messages. Experimentations were carried out in our Open Source Framework, which enables fast prototyping of protocols based on an UWB Physical Layer.

Published
2016
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34. 3DCane: a monitoring system for the elderly using a connected walking stick

Author

Abdelfetteh Lachtar, Thierry VAL, Abdennaceur Kachouri, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Fall detection, Système d'exploitation, Real-time movements, Réseaux et télécommunications, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Multi-stage thresholding, Systèmes embarqués, Connected walking stick
Abstract

International audience; fall related injuries caused have become a leading cause of fatalities among the elderly. Lots of aging people rely on a cane as a help device to overcome such problems as balance loss and leg weakness, presumed to be at the origin of many fall incidents. In this respect, the internet of things may turn out to be critically helpful, by offering disabled people the assistance and support necessary for achieving a good quality of life and allowing them to participate in the social and economic activities. In this paper, a 3DCane design is depicted, with an implementation for the CANet project, a system whereby a comprehensive monitoring of disabled people can be maintained through the use of their connected walking stick. Actually, the 3Dcane is modeled through consideration of real-time movements for a thorough understanding of the concerned person's state, including fall detection. To note, the 3DCane applies a multi-stage thresholding framework based on an accelerometer. Experiments have revealed that the fall-detection algorithm appears to be robust in term of detection rate and false positive rate.

Published
2016

35. Connexion du Middleware MiCom avec l'interface tactile InTacS pour le contrôle d'une smart home

Author

Frédéric Vella, Mathilde Blanc Machado, Nadine Vigouroux, Adrien van den Bossche, Thierry VAL, Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), MSHS-T, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Interface tactile, Système d'exploitation, Réseaux et télécommunications, Interaction Homme machine, Protocole de communication, Systèmes embarqués, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Personnes âgées, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Domotique
Abstract

International audience; Cet article a pour objectif de décrire l'interconnexion entre le Middleware MiCom pour la commande de contrôle de l'environnement d'une smart home à partir de l'application tactile InTacS spécialement conçue pour des seniors. Nous décrivons ensuite le protocole expérimental conduit. Puis nous montrons l'importance du journal MiCom pour l'étude des interactions. Ensuite, nous présentons des résultats préliminaires obtenus sur le lieu d'utilisation de la tablette. Enfin, nous proposons quelques perspectives d'analyse et de recherche sur des capteurs alliant l'expertise de deux domaines (Interaction Homme-Machine ; Réseaux et Protocoles).

Published
2016

36. Multidimensional observation methodology for the elderly in an ambient digital environment

Author

Mathilde Blanc Machado, Jenny Duchier, Eric Campo, Adrien van den Bossche, Nadine Vigouroux, Thierry Val, Frédéric Vella, Elizabeth Bougeois, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Institut National de la Santé et de la Recherche Médicale - INSERM (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Laboratoire d'Etudes et de Recherches Appliquées en Sciences Sociales - LERASS (Toulouse, France), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Équipe Instrumentation embarquée et systèmes de surveillance intelligents (LAAS-S4M), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Epidémiologie et analyses en santé publique : risques, maladies chroniques et handicaps (LEASP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire d'Etudes et de Recherches Appliquées en Sciences Sociales (LERASS), Université Paul-Valéry - Montpellier 3 (UPVM)-Université Toulouse - Jean Jaurès (UT2J), Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Klaus Miesenberger, Christian Bühler, Petr Penaz, Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), (OATAO), Open Archive Toulouse Archive Ouverte, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse Capitole (UT Capitole), Université Fédérale Toulouse Midi-Pyrénées, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paul-Valéry - Montpellier 3 (UPVM)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Paul-Valéry - Montpellier 3 (UPVM), and Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], [INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, Système d'exploitation, Réseaux et télécommunications, 02 engineering and technology, Elderly people, computer.software_genre, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Living lab, Architectures Matérielles, 0502 economics and business, 0202 electrical engineering, electronic engineering, information engineering, Mixing (physics), Coupling, [INFO.INFO-NI] Computer Science [cs]/Networking and Internet Architecture [cs.NI], Multimedia, 05 social sciences, Ambient digital environment, Multidimensional observation, Systèmes embarqués, [INFO.INFO-ES] Computer Science [cs]/Embedded Systems, [INFO.INFO-OS] Computer Science [cs]/Operating Systems [cs.OS], [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], computer, 050203 business & management
Abstract

International audience; This paper proposes a new methodological approach for a better understanding of the needs of elderly people and the use of the technology in an ambient digital environment. This methodology is based on the implementation of a multidimensional observation tool coupling mixing ethnographic observation of actions and interviews with a multitechnological infrastructure in a Living Lab. Some preliminary results are presented with the participation of 14 seniors.

Published
2016
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37. OpenWiNo: An Open Hardware and Software Framework for Fast-Prototyping in the IoT

Author

Rejane Dalce, Adrien van den Bossche, Thierry Val, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Open hardware, Computer science, Distributed computing, Internet of Things, Système d'exploitation, Réseaux et télécommunications, Context (language use), 02 engineering and technology, computer.software_genre, Field (computer science), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Software, Architectures Matérielles, Arduino, 0202 electrical engineering, electronic engineering, information engineering, business.industry, 020208 electrical & electronic engineering, Testbed, Physical layer, 020206 networking & telecommunications, Systèmes embarqués, Software framework, Fast Prototyping, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, computer, Wireless sensor network, Wireless Sensor networks, Computer hardware
Abstract

International audience; The Internet of Things promises an always-connected future where the objects surrounding us will communicate in order to make our lives easier, more secure, etc. This evolution is a research opportunity as new solutions must be found to problems ranging from network interconnection to data mining. In the networking community, innovative solutions are being developed for the Device Layer of the Internet of Things, which includes the IoT wireless protocols. In order to study their performance, researchers turn more often to real world platforms, commonly designated by the term "testbeds", on which they may implement and test the protocols and algorithms. This is even more important in the Industrial IoT field, where environments are perturbed by industrial systems like automated production systems. In this paper, after a brief presentation of the context of testbeds, we introduce WiNo and OpenWiNo, an open hardware and software framework for fast-prototyping in the field of the Internet of Things. Compared to existing platforms, the solution WiNo+OpenWiNo offers a wide array of Physical layers and easy integration of various sensors as it is developed as part of the Arduino ecosystem. It also allows research teams to easily and quickly deploy their own testbed into real environments.

Published
2016

38. Post-test perceptions of digital tools by the elderly in an ambient environment

Author

Nadine Vigouroux, Thierry Val, Elizabeth Bougeois, Frédéric Vella, Mathilde Blanc Machado, Jenny Duchier, Adrien van den Bossche, Eric Campo, Damien Brulin, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Institut National de la Santé et de la Recherche Médicale - INSERM (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Laboratoire d'Etudes et de Recherches Appliquées en Sciences Sociales (LERASS), Université Paul-Valéry - Montpellier 3 (UPVM)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT), Epidémiologie et analyses en santé publique : risques, maladies chroniques et handicaps (LEASP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM), Etude de L’Interaction Personne SystèmE (IRIT-ELIPSE), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Équipe Instrumentation embarquée et systèmes de surveillance intelligents (LAAS-S4M), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), MSH-T of Toulouse and 'AG2R La Mondiale' Insurance group, Université Paul-Valéry - Montpellier 3 (UPVM)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), and Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Toulouse III - Paul Sabatier (UT3)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], media_common.quotation_subject, Usability, Système d'exploitation, Réseaux et télécommunications, Context (language use), 02 engineering and technology, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Presentation, Elderly, Living lab, interaction mode, Human–computer interaction, Architectures Matérielles, Perception, 0202 electrical engineering, electronic engineering, information engineering, Perceptions, 0501 psychology and cognitive sciences, Living Lab, 050107 human factors, media_common, business.industry, 05 social sciences, Ambient digital environment, Systèmes embarqués, Test (assessment), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, Interaction mode, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Psychology, business, Autonomy
Abstract

This article presents the first results about the perception of 33 elderly people about interaction tools in a digital ambient environment. The evaluation of this study is based on the filling of a short questionnaire, and interviews after a presentation of the different possible technologies and the use of a digital automated living lab, centred on a life scenario, by volunteers. The first results show a significant interest of the elderly in the voice interaction mode, in comparison with tactile interaction or switches, as well as a good opinion of the technological tools presented, in the context of a potential future use, for their health, better autonomy and well-being.

Published
2016

39. An Original Correction Method for Indoor Ultra Wide Band Ranging-based Localisation System

Author

Rejane Dalce, Thierry Val, Adrien van den Bossche, Nezo Ibrahim Fofana, Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
FOS: Computer and information sciences, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Correction method, Computer science, Real-time computing, Système d'exploitation, Réseaux et télécommunications, SDSTWR, Ultra-wideband, Indoor localisation, 02 engineering and technology, Computer Science - Networking and Internet Architecture, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Time of flight, UWB, Architectures Matérielles, Position (vector), 0202 electrical engineering, electronic engineering, information engineering, Simulation, Networking and Internet Architecture (cs.NI), TWR, Ranging, Testbed, Process (computing), 020206 networking & telecommunications, Prototyping, Systèmes embarqués, Constraint (information theory), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Wireless sensor network
Abstract

During this decade, Wireless Sensor Networks (WSNs) brought an increasing interest in the industrial and research world. One of their applications is the indoor localization. The ranging, i.e. the distance evaluation mechanism between nodes, is required to determine the position of the nodes. The research work presented in this article aims to use Ultra Wide Band (UWB) radio links to achieve an efficient ranging, based on Time of Flight (ToF) measurement. A good solution consists in integrating ranging traffic into the usual network mes-sages. However, the ToF ranging process is based on information exchanges which are temporally constrained. Once this information is encapsulated into the usual messages, the temporal constraint cannot be honoured, resulting in important ranging errors due to clock drifts. To mitigate these errors, we have introduced an original dynamic correction technique which enables a precision of twenty centimetres allowing the inclusion of ranging traffic in usual traffic, in Adhoc Now 2016

Published
2016

40. PROTOTYPING AND PERFORMANCE ANALYSIS OF A QoS MAC LAYER FOR INDUSTRIAL WIRELESS NETWORK

Author

Adrien van den Bossche, Thierry Val, Eric Campo, Laboratoire Toulousain de Technologie et d'Ingénierie des Systèmes (LATTIS), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-IUT Toulouse 2 Blagnac, and Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J)

Subjects
Networking and Internet Architecture (cs.NI), FOS: Computer and information sciences, Wireless network, business.industry, Computer science, Reliability (computer networking), Quality of service, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, 05 social sciences, Frame (networking), 050801 communication & media studies, 020206 networking & telecommunications, Access control, 02 engineering and technology, Computer Science - Networking and Internet Architecture, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0508 media and communications, 0202 electrical engineering, electronic engineering, information engineering, Wireless, Layer (object-oriented design), business, Wireless sensor network, Computer network
Abstract

Today's industrial sensor networks require strong reliability and guarantees on messages delivery. These needs are even more important in real time applications like control/command, such as robotic wireless communications where strong temporal constraints are critical. For these reasons, classical random-based Medium Access Control (MAC) protocols present a non-null frame collision probability. In this paper we present an original full deterministic MAC-layer for industrial wireless network and its performance evaluation thanks to the development of a material prototype., 7th IFAC International Conference on. Fieldbuses and nETworks in industrial and embedded systems, Toulouse : France (2007)

Published
2007
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41. BEACON SYNCHRONIZATION FOR GTS COLLISION AVOIDANCE IN AN IEEE802.15.4 MESHED NETWORK

Author

Jackson Francomme, Thierry Val, Gilles Mercier, Laboratoire Toulousain de Technologie et d'Ingénierie des Systèmes (LATTIS), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse - Jean Jaurès (UT2J), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-IUT Toulouse 2 Blagnac, Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), and Université de Toulouse (UT)

Subjects
Collision, Engineering, Emerging technologies, 02 engineering and technology, Synchronization, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], [INFO.INFO-MC]Computer Science [cs]/Mobile Computing, Synchronization (computer science), 0202 electrical engineering, electronic engineering, information engineering, Process control, Wireless, IEEE802.15.4, Collision avoidance, business.industry, Industrial Networks, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Local area network, 020206 networking & telecommunications, WSN, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, Beacon, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, 020201 artificial intelligence & image processing, business, Computer network
Abstract

International audience; Industrial process control architectures are generally composed of nodes organized in a cluster-tree. Today, wired communications between nodes enable guaranteeing the constraint respect attached to determinism. Innovations in wireless technology allow using these new technologies instead of wired systems. IEEE 802.15.4 standard meet industrial local network needs, but it does not propose any mechanisms to avoid beacon and GTS (Guaranteed Time Slot ) collisions in meshed network. This communication proposes a new synchronization method for beacons and GTSs in meshed networks using IEEE 802.15.4.

Published
2007
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42. Comparative study of IEEE 802.15.4 and IEEE 802.15.6 for WBAN-based CANet

Author

Hend Fourati, Sabri Khssibi, Thierry VAL, Hanen Idoudi, Adrien van den Bossche, Leila Azzouz Saidane, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université de la Manouba - UMA (TUNISIA), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Université de la Manouba [Tunisie] (UMA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], IEEE 802.15.4, E-health, IEEE 802.15.6, Système d'exploitation, Réseaux et télécommunications, CANet project, Systèmes embarqués, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Wireless body area networks (WBANs)
Abstract

International audience; In this paper, we present an overview of IEEE 802.15.4 and 802.15.6 standards. Thereafter, in view of their various strengths and many similarities, we study the possibility of using one of these two norms to implement the body area network (WBAN) of CANet (an innovative ehealth project) scenario according to the nature of the studied sensors. To do so, we considered an hybrid differentiation layer, previously proposed, based on 802.15.4 and we made a classification of CANet ehealth sensors based on IEEE 802.15.6 native superframe periods and priority and service differentiation systems. Each choice between them has its advantages and disadvantages. Thus, it will be necessary to analyse in detail the simulation and prototyping results of 802.15.4 and 802.15.6 norms once implemented in CANet context in order to decide about the standard providing the optimal QoS.

Published
2015

43. Performance evaluation of IEEE 802.15.6 CSMA/CA-based CANet WBAN

Author

Adrien van den Bossche, Hanen Idoudi, Leila Azzouz Saidane, Hend Fourati, Thierry Val, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université de la Manouba - UMA (TUNISIA), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université de la Manouba [Tunisie] (UMA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Université Toulouse - Jean Jaurès (UT2J)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Medium Access Control (MAC), IEEE 802.15.6, 020205 medical informatics, Computer science, Système d'exploitation, Réseaux et télécommunications, Throughput, 02 engineering and technology, Performances evaluation, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, 0202 electrical engineering, electronic engineering, information engineering, Wireless, Priority, Wireless sensor networks (WSN), IEEE 802.15, E-health, business.industry, Body area, 020206 networking & telecommunications, CANet project, Systèmes embarqués, CSMA/CA, Embedded system, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Carrier sense multiple access with collision avoidance, Healthcare system, Computer network, Wireless body area networks (WBANs)
Abstract

International audience; In the recent few years, Wireless Body Area networks (WBANs) showed what can be done remotely to greatly improve healthcare systems and facilitate the life to elderly. One of the recent ehealth projects is CANet which aims at embedding a WBAN into a cane to monitor elderly/patients. Our main goal in this paper is to evaluate the performances of the emerging standard IEEE 802.15.6 when applied on different sensors from CANet eHealth project. At this end, we defined a small scenario extracted from CANet, and we assigned IEEE 802.15.6 priorities to the selected cane sensors according to their inherent characteristics. We considered further the mandatory RAP period of IEEE 802.15.6 superframe under the beacon period with superframes mode since it supports both normal and urgent traffic. Our results showed that the contention access behavior of this considered model of simulation depends on several constraints (including the nature of the studied application and the traffic types and frequency). This would be necessarily taken into account to get the most advantage of all features offered by WBANs standard IEEE 802.15.6. Keywords—Medium Access Control (MAC), wireless body area networks (WBANs), E-health, CANet project, wireless sensor networks (WSN), IEEE 802.15.6.

Published
2015

44. Prototypage et analyse de performances d'un système de ranging pour une localisation par UWB

Author

Nezo Ibrahim Fofana, Adrien van den Bossche, Rejane Dalce, Thierry VAL, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Localisation d'intérieur, Temps de vol, TWR, Ranging, ToF, Système d'exploitation, Testbed, Réseaux et télécommunications, Prototypage, Systèmes embarqués, Mesure de distance, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], UWB, SDS-TWR, Architectures Matérielles, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS]
Abstract

International audience; Durant cette dernière décennie, les réseaux de capteurs sans fil (WSN) et plus généralement les liens de collecte dans l'Internet des Objets et les réseaux pour les systèmes ambiants, ont suscité une forte attention dans le monde industriel et celui de la recherche. Une de leurs applications est la localisation indoor des noeuds communicants. Le mécanisme d'évaluation de la distance entre les noeuds (ranging) est nécessaire pour les noeuds afin de déterminer leur position de façon précise. Les travaux de recherche présentés dans cet article s'inscrivent dans cette thématique et visent à utiliser les liens radio de type Ultra Wide Band (UWB), proposés par l'amendement de l'année 2007 de la norme IEEE 802.15.4, également utilisée par Zigbee et 6LoWPAN. Les transmissions UWB permettent d'obtenir un ranging performant par mesure de temps de vol (Time of Flight, ToF) qui permet d'alimenter des algorithmes et des protocoles de localisation des noeuds, sans matériel dédié (GPS, accéléromètre, ...). Pour que cette capacité de localisation soit réellement intéressante sur le plan applicatif, les messages de ranging doivent être intégrés dans les messages usuels du réseau (données, beacons, acquittements, etc.). Or, parce que le ranging repose sur des messages contraints temporellement, cette intégration pose problème, notamment à cause de la dérive des horloges qui n'est plus négligeable si les échanges sont étalés dans le temps. On aboutit alors à une grande imprécision de mesure de ToF et donc, de distance. Pour corriger ces erreurs, nous avons introduit des techniques originales de corrections algorithmiques dynamiques afin d'éliminer ces imprécisions. Une solution protocolaire de mesure est proposée et évaluée par un prototypage réel. Les résultats montrent une précision d'une vingtaine de centimètres, ce qui est bien meilleur que les solutions précédentes étudiées et qui laisse envisager la proposition future d'une inclusion du trafic de ranging dans le trafic usuel du réseau.

Published
2015

45. BLE Localization using RSSI Measurements and iRingLA

Author

Adel Thaljaoui, Nejah Nasri, Damien Brulin, Thierry Val, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Équipe Nano Ingénierie et Intégration des Systèmes (LAAS-N2IS), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse 1 Capitole (UT1), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Engineering, Computational complexity theory, Smarthome, Système d'exploitation, Réseaux et télécommunications, Context (language use), law.invention, Bluetooth, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Home automation, law, Architectures Matérielles, Electronic engineering, RSSI, business.industry, Systèmes embarqués, Software deployment, Hybrid system, Received signal strength indication, Localization, BLE, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Radio frequency, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business
Abstract

International audience; Over the last few years, indoor localization has been a very dynamic research area that has drawn great attention. Many methods have been proposed for indoor positioning as well as navigation services. A big number of them were based on Radio frequency (RF) technology and Radio Signal Strength Indicator (RSSI) for their simplicity of use. The main issues of the studies conducted in this field are related to the improvement of localization factors like accuracy, computational complexity, easiness of deployment and cost. In our study, we used Bluetooth Low Energy (BLE) technology for indoor localization in the context a smart home where an elderly person can be located using an hybrid system that combines the radio, light and sound information. In this paper, we propose a model that averages the received signal strength indication (RSSI) at any the distance domain which offered accuracy down to 1 meter, depending on the deployment configuration.

Published
2015
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46. A genetic algorithm-based approach to optimize the coverage and the localization in the wireless audiosensors networks

Author

Thierry Val, Adel Thaljaoui, Nejah Nasri, Sami Mnasri, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Laboratoire d'électronique et des technologies de l'Information [Sfax] (LETI), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Université Toulouse - Jean Jaurès (UT2J), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, media_common.quotation_subject, Real-time computing, Deployment, Système d'exploitation, Réseaux et télécommunications, Audio localization, 02 engineering and technology, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], 0203 mechanical engineering, Architectures Matérielles, Genetic algorithm, 0202 electrical engineering, electronic engineering, information engineering, Computer Science::Networking and Internet Architecture, Wireless, Quality (business), media_common, Mobile node, business.industry, 020302 automobile design & engineering, NSGAII, Systèmes embarqués, Target coverage, Key distribution in wireless sensor networks, Software deployment, 020201 artificial intelligence & image processing, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Performance improvement, business, Wireless sensor network, Computer network, Sensor field
Abstract

International audience; Coverage is one of the most important performance metrics for sensor networks that reflects how well a sensor field is monitored. In this paper, we are interested in studying the positioning and placement of sensor nodes in a WSN in order to maximize the coverage problem and to optimize the audio localization in wireless sensor networks. First, we introduce the problem of deployment. Then we propose a mathematical formulation and a genetic based approach to solve this problem. Finally, we present the results of experimentations. This paper presents a genetic algorithm which aims at searching for an optimal or near optimal solution to the coverage holes problem. Compared with random deployment as well as existing methods, our genetic algorithm shows significant performance improvement in terms of quality.

Published
2015
Full Text
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47. Reducing localisation overhead: a ranging protocol and an enhanced algorithm for UWB-based WSNs

Author

Adrien van den Bossche, Thierry Val, Rejane Dalce, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Institut National Polytechnique de Toulouse - INPT (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Engineering, business.industry, Intersection (set theory), Système d'exploitation, Ultra-wideband, Réseaux et télécommunications, Medium access control, Ranging, Localisation, Systèmes embarqués, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Ultra wide band, Overhead (computing), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Ranging protocol, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Routing (electronic design automation), business, Wireless sensor network, Protocol (object-oriented programming), Trilateration, Algorithm
Abstract

International audience; The ability for the nodes in a Wireless Sensor Network to determine their position is a desirable trait. Routing as well as other client applications can benefit from this information. In this paper, we introduce the results obtained from our UWB-based prototype. We implemented two adaptations of the Symmetric Double-Sided Two-Way Ranging (SDS- TWR) protocol, namely Sequential Symmetric Double-Sided Two- Way Ranging (SSDS-TWR), and Parallel Double-Sided Two-Way Ranging (PDS-TWR), the latter being one of our contributions. PDS-TWR significantly reduces the overhead associated with ranging. We also introduce the enhanced version of our localisation algorithm, inter-Ring Localisation Algorithm (iRingLA), which is a good alternative for conventional trilateration. This new version improves the ability to compute the position when thin rings are used by focusing on the exact intersection: the number of test points remains small and the algorithm can be implemented on computationally constrained platforms. Using PDS-TWR and 2 anchors, we obtained a 2D localisation error of 79cm in an indoor environment.

Published
2015
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48. A help for assisting people based on a depth cameras system dedicated to elderly and dependent people

Author

Thierry Val, Laurent Andrieux, Asma Ben Hadj Mohamed, Abdennaceur Kachouri, Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), and Institut National Polytechnique de Toulouse - INPT (FRANCE)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer science, Système d'exploitation, Réseaux et télécommunications, Gesture recognition, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Smart home, Home automation, Human–computer interaction, Architectures Matérielles, Default gateway, Computer vision, System development, Kinect, business.industry, Sensor network, Systèmes embarqués, Test (assessment), [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, Elderly control, Artificial intelligence, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Gesture
Abstract

International audience; In this paper, we propose a help to a comfort system development based on Kinect sensor to assist people commanding their own house by using only their gestures. The system uses a multi-sensors to detect the person, recognize her gestures and communicate through an IP/KNX gateway to act on actuators related to the home. Thus, a simple gesture is able to turn on/off the lights, to switch on/off the TV, to move up or down the shutters etc. We performed a test bed within the smart home of our University Institute of Technology in Blagnac.

Published
2015
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49. The 3D Deployment Multi-objective Problem in Mobile WSN: Optimizing Coverage and Localization

Author

Sami Mnasri, Adrien van den Bossche, Nejah Nasri, Thierry VAL, Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Toulouse Mind & Brain Institut (TMBI), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Université de Sfax (TUNISIA), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
3D Deployment, [INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Genetic Algorithm, Système d'exploitation, Réseaux et télécommunications, NSGAII, Systèmes embarqués, [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Target Coverage, Architectures Matérielles, Localization, Computer Science::Networking and Internet Architecture, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], Mobile Node
Abstract

International audience; The deployment of sensor nodes is a critical phase that significantly affects the functioning and performance of the sensor network. Coverage is an important metric reflecting how well the region of interest is monitored. Random deployment is the sim-plest way to deploy sensor nodes but may cause unbalanced deployment and therefore, we need a more intelligent way for sensor deployment. In this paper, we study the positioning of sensor nodes in a WSN in order to maximize the coverage problem and to optimize the localization. First, the problem of deployment is introduced, then we present the latest research works about the different proposed methods. Also, we propose a mathematical formulation and a genetic based approach to solve this problem. Finally, the numerical results of experimentations are presented and discussed. Indeed, this paper presents a genetic algorithm which aims at searching for an optimal or near optimal solution to the coverage holes problem. Our algorithm defines the minimum number and the best locations of the mobile nodes to add after the initial random deployment of the stationary nodes. Compared with random deployment, our genetic algorithm shows significant performance improvement in terms of quality of coverage while optimizing the localization in the sensor network.

Published
2015

50. Improvement of range-free localization technology by a novel DV-hop protocol in wireless sensor networks

Author

Rejane Dalce, Anne Wei, Thierry Val, Linqing Gui, Conservatoire National des Arts et Métiers - CNAM (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Université Toulouse 1 Capitole - UT1 (FRANCE), Nanjing University of Science and Technology - NUST (CHINA), Institut de Recherche en Informatique de Toulouse - IRIT (Toulouse, France), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Nanjing University of Science and Technology (NJUST), Réseaux, Mobiles, Embarqués, Sans fil, Satellites (IRIT-RMESS), Institut de recherche en informatique de Toulouse (IRIT), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J), Centre d'études et de recherche en informatique et communications (CEDRIC), and Ecole Nationale Supérieure d'Informatique pour l'Industrie et l'Entreprise (ENSIIE)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)

Subjects
[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], Computer Networks and Communications, Computer science, Real-time computing, Système d'exploitation, Réseaux et télécommunications, Synchronization, Reduction (complexity), [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], Architectures Matérielles, Protocol, Overhead (computing), Protocol (object-oriented programming), business.industry, Node (networking), DV-hop, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Ranging, Systèmes embarqués, Wireless sensor networks, Key distribution in wireless sensor networks, Range-free, Hardware and Architecture, Localization, [INFO.INFO-ES]Computer Science [cs]/Embedded Systems, [INFO.INFO-OS]Computer Science [cs]/Operating Systems [cs.OS], business, Wireless sensor network, Software, Simulation, Computer network
Abstract

International audience; Localization is a fundamental issue for many applications in wireless sensor networks. Without the need of additional ranging devices, the range-free localization technology is a cost-effective solution for low-cost indoor and outdoor wireless sensor networks. Among range-free algorithms, DV-hop (Distance Vector - hop) has the advantage to localize the mobile nodes which has less than three neighbour anchors. Based on the original DV-hop algorithm, this paper presents two improved algorithms (Checkout DV-hop and Selective 3-Anchor DV-hop). Checkout DV-hop algorithm estimates the mobile node position by using the nearest anchor, while Selective 3-Anchor DV-hop algorithm chooses the best 3 anchors to improve localization accuracy. Then, in order to implement these DV-hop based algorithms in network scenarios, a novel DV-hop localization protocol is proposed. This new protocol is presented in detail in this paper, including the format of data payloads, the improved collision reduction method E-CSMA/CA, as well as parameters used in deciding the end of each DV-hop step. Finally, using our localization protocol, we investigate the performance of typical DV-hop based algorithms in terms of localization accuracy, mobility, synchronization and overhead. Simulation results prove that Selective 3-Anchor DV-hop algorithm offers the best performance compared to Checkout DV-hop and the original DV-hop algorithm.

Published
2015
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