Search

Your search keyword '"Awan, Irfan"' showing total 651 results
Start Over Author "Awan, Irfan"

Refine your results

more »

more »

more »

more »
651 results on '"Awan, Irfan"'

4. Failure Analysis Modelling in an Infrastructure as a Service (Iaas) Environment

Author

Mohammed, Bashir, Modu, Babagana, Maiyama, Kabiru M, Ugail, Hassan, Awan, Irfan, and Kiran, Mariam

Subjects
Failure Prediction, Iaas, Replication, HPC, Checkpointing, Computation Theory and Mathematics, Computer Software, Cognitive Sciences, Computation Theory & Mathematics
Abstract

Failure Prediction has long known to be a challenging problem. With the evolving trend of technology and growing complexity of high-performance cloud data centre infrastructure, focusing on failure becomes very vital particularly when designing systems for the next generation. The traditional runtime fault-tolerance (FT) techniques such as data replication and periodic check-pointing are not very effective to handle the current state of the art emerging computing systems. This has necessitated the urgent need for a robust system with an in-depth understanding of system and component failures as well as the ability to predict accurate potential future system failures. In this paper, we studied data in-production-faults recorded within a five years period from the National Energy Research Scientific computing centre (NERSC). Using the data collected from the Computer Failure Data Repository (CFDR), we developed an effective failure prediction model focusing on high-performance cloud data centre infrastructure. Using the Auto-Regressive Moving Average(ARMA), our model was able to predict potential future failures in the system. Our results also show a failure prediction accuracy of 95%, which is good. We thus believe that our strategy is practical and can be adapted to use in existing real-time systems.

Published
2018

6. Failover strategy for fault tolerance in cloud computing environment

Author

Mohammed, Bashir, Kiran, Mariam, Maiyama, Kabiru M, Kamala, Mumtaz M, and Awan, Irfan‐Ullah

Subjects
cloud computing, fault tolerance, checkpointing, virtualization, load balancing, virtual machine, Information and Computing Sciences, Psychology and Cognitive Sciences, Software Engineering
Abstract

Cloud fault tolerance is an important issue in cloud computing platforms and applications. In the event of an unexpected system failure or malfunction, a robust fault-tolerant design may allow the cloud to continue functioning correctly possibly at a reduced level instead of failing completely. To ensure high availability of critical cloud services, the application execution, and hardware performance, various fault-tolerant techniques exist for building self-autonomous cloud systems. In comparison with current approaches, this paper proposes a more robust and reliable architecture using optimal checkpointing strategy to ensure high system availability and reduced system task service finish time. Using pass rates and virtualized mechanisms, the proposed smart failover strategy (SFS) scheme uses components such as cloud fault manager, cloud controller, cloud load balancer, and a selection mechanism, providing fault tolerance via redundancy, optimized selection, and checkpointing. In our approach, the cloud fault manager repairs faults generated before the task time deadline is reached, blocking unrecoverable faulty nodes as well as their virtual nodes. This scheme is also able to remove temporary software faults from recoverable faulty nodes, thereby making them available for future request. We argue that the proposed SFS algorithm makes the system highly fault tolerant by considering forward and backward recovery using diverse software tools. Compared with existing approaches, preliminary experiment of the SFS algorithm indicates an increase in pass rates and a consequent decrease in failure rates, showing an overall good performance in task allocations. We present these results using experimental validation tools with comparison with other techniques, laying a foundation for a fully fault-tolerant infrastructure as a service cloud environment. Copyright © 2017 John Wiley & Sons, Ltd.

Published
2017

10. Enhancing Zero Trust Models in the Financial Industry through Blockchain Integration: A Proposed Framework.

Author

Daah, Clement, Qureshi, Amna, Awan, Irfan, and Konur, Savas

Subjects
TRUST, FINANCIAL services industry, PENETRATION testing (Computer security), LITERATURE reviews, BLOCKCHAINS, DATA protection, COMPUTER crime prevention
Abstract

As financial institutions navigate an increasingly complex cyber threat landscape and regulatory ecosystem, there is a pressing need for a robust and adaptive security architecture. This paper introduces a comprehensive, Zero Trust model-based framework specifically tailored for the finance industry. It encompasses identity and access management (IAM), data protection, and device and network security and introduces trust through blockchain technology. This study provides a literature review of existing Zero Trust paradigms and contrasts them with cybersecurity solutions currently relevant to financial settings. The research adopts a mixed methods approach, combining extensive qualitative analysis through a literature review and assessment of security assumptions, threat modelling, and implementation strategies with quantitative evaluation using a prototype banking application for vulnerability scanning, security testing, and performance testing. The IAM component ensures robust authentication and authorisation processes, while device and network security measures protect against both internal and external threats. Data protection mechanisms maintain the confidentiality and integrity of sensitive information. Additionally, the blockchain-based trust component serves as an innovative layer to enhance security measures, offering both tamper-proof verification and increased integrity. Through analysis of potential threats and experimental evaluation of the Zero Trust model's performance, the proposed framework offers financial institutions a comprehensive security architecture capable of effectively mitigating cyber threats and fostering enhanced consumer trust. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

12. DoS Attack Impact Assessment on Software Defined Networks

Author

Sangodoyin, Abimbola, Sigwele, Tshiamo, Pillai, Prashant, Hu, Yim Fun, Awan, Irfan, Disso, Jules, Akan, Ozgur, Series Editor, Bellavista, Paolo, Series Editor, Cao, Jiannong, Series Editor, Coulson, Geoffrey, Series Editor, Dressler, Falko, Series Editor, Ferrari, Domenico, Series Editor, Gerla, Mario, Series Editor, Kobayashi, Hisashi, Series Editor, Palazzo, Sergio, Series Editor, Sahni, Sartaj, Series Editor, Shen, Xuemin (Sherman), Series Editor, Stan, Mircea, Series Editor, Xiaohua, Jia, Series Editor, Zomaya, Albert Y., Series Editor, Pillai, Prashant, editor, Sithamparanathan, Kandeepan, editor, Giambene, Giovanni, editor, Vázquez, Miguel Ángel, editor, and Mitchell, Paul Daniel, editor

Published
2018
Full Text
View/download PDF

22. Implementation and Evaluation of Network Intrusion Detection Systems

Author

Akhlaq, Monis, Alserhani, Faeiz, Awan, Irfan, Mellor, John, Cullen, Andrea J., Al-Dhelaan, Abdullah, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Kouvatsos, Demetres D., editor

Published
2011
Full Text
View/download PDF

23. Smart Logic - Preventing Packet Loss in High Speed Network Intrusion Detection Systems

Author

Subhan, Ahsan, Akhlaq, Monis, Alserhani, Faeiz, Awan, Irfan U., Mellor, John, Cullen, Andrea J., Mirchandani, Pravin, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, and Weerasinghe, Dasun, editor

Published
2010
Full Text
View/download PDF

24. Virtualization Efficacy for Network Intrusion Detection Systems in High Speed Environment

Author

Akhlaq, Monis, Alserhani, Faeiz, Awan, Irfan U., Mellor, John, Cullen, Andrea J., Mirchandani, Pravin, Akan, Ozgur, Series editor, Bellavista, Paolo, Series editor, Cao, Jiannong, Series editor, Dressler, Falko, Series editor, Ferrari, Domenico, Series editor, Gerla, Mario, Series editor, Kobayashi, Hisashi, Series editor, Palazzo, Sergio, Series editor, Sahni, Sartaj, Series editor, Shen, Xuemin (Sherman), Series editor, Stan, Mircea, Series editor, Xiaohua, Jia, Series editor, Zomaya, Albert, Series editor, Coulson, Geoffrey, Series editor, and Weerasinghe, Dasun, editor

Published
2010
Full Text
View/download PDF

25. A Formal Approach to Investigate the Performance of Modern E-commerce Services

Author

Nafea, Ibtehal, Holton, D. R. W., Younas, Muhammad, Awan, Irfan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Al-Begain, Khalid, editor, Fiems, Dieter, editor, and Knottenbelt, William J., editor

Published
2010
Full Text
View/download PDF

26. Performance Evaluation of Weighted Fair Queuing System Using Matrix Geometric Method

Author

Al-Sawaai, Amina, Awan, Irfan, Fretwell, Rod, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Fratta, Luigi, editor, Schulzrinne, Henning, editor, Takahashi, Yutaka, editor, and Spaniol, Otto, editor

Published
2009
Full Text
View/download PDF

27. Performance Analysis of Angle Routing in MANETs

Author

Al-Amoudi, Othman A., El-Azhari, Mohamed S., Woodward, Mike, Awan, Irfan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Takizawa, Makoto, editor, Barolli, Leonard, editor, and Enokido, Tomoya, editor

Published
2008
Full Text
View/download PDF

28. Performance Evaluation of Dynamic Probabilistic Flooding Using Local Density Information in MANETs

Author

Siddique, Aamir, Hanashi, Abdalla M., Awan, Irfan, Woodward, Mike, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Enokido, Tomoya, editor, Barolli, Leonard, editor, and Takizawa, Makoto, editor

Published
2007
Full Text
View/download PDF

29. An Adaptive Call Admission Control Approach for Multimedia 3G Network

Author

Ahmad, Waqas, Awan, Irfan, Takizawa, Makoto, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Enokido, Tomoya, editor, Barolli, Leonard, editor, and Takizawa, Makoto, editor

Published
2007
Full Text
View/download PDF

33. Analytical Modeling and Comparison of AQM-Based Congestion Control Mechanisms

Author

Wang, Lan, Min, Geyong, Awan, Irfan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Yang, Laurence T., editor, Rana, Omer F., editor, Di Martino, Beniamino, editor, and Dongarra, Jack, editor

Published
2005
Full Text
View/download PDF

34. RED Based Congestion Control Mechanism for Internet Traffic at Routers

Author

Yar, Asfand-E, Awan, Irfan, Woodward, Mike E., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Kim, Cheeha, editor

Published
2005
Full Text
View/download PDF

35. Performance Analysis of Congestion Control Mechanism Using Queue Thresholds Under Bursty Traffic

Author

Guan, Lin, Awan, Irfan, Woodward, Mike E., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Freire, Mário Marques, editor, Chemouil, Prosper, editor, Lorenz, Pascal, editor, and Gravey, Annie, editor

Published
2004
Full Text
View/download PDF

39. Virtualization in Network Intrusion Detection Systems

Author

Akhlaq, Monis, Alserhani, Faeiz, Awan, Irfan U., Cullen, Andrea J., Mellor, John, Mirchandani, Pravin, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Meersman, Robert, editor, Herrero, Pilar, editor, and Dillon, Tharam, editor

Published
2009
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results