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139 results on '"Hussain, Muntazir"'

6. Energy Efficient Cross Layer Time Synchronization in Cognitive Radio Networks

Author

Hashmi, S. M. Usman, Hussain, Muntazir, Arshad, S. M. Nashit, Inayat, Kashif, and Hwang, Seong Oun

Subjects
Computer Science - Networking and Internet Architecture
Abstract

Time synchronization is a vital concern for any Cognitive Radio Network (CRN) to perform dynamic spectrum management. Each Cognitive Radio (CR) node has to be environment aware and self adaptive and must have the ability to switch between multiple modulation schemes and frequencies. Achieving same notion of time within these CR nodes is essential to fulfill the requirements for simultaneous quiet periods for spectrum sensing. Current application layer time synchronization protocols require multiple timestamp exchanges to estimate skew between the clocks of CRN nodes. The proposed symbol timing recovery method already estimates the skew of hardware clock at the physical layer and use it for skew correction of application layer clock of each node. The heart of application layer clock is the hardware clock and hence application layer clock skew will be same as of physical layer and can be corrected from symbol timing recovery process. So one timestamp is enough to synchronize two CRN nodes. This conserves the energy utilized by application layer protocol and makes a CRN energy efficient and can achieve time synchronization in short span., Comment: International Journal of Internet Technology and Secured Transactions, 2020

Published
2020
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7. Implementation of Symbol Timing Recovery for Estimation of Clock Skew

Author

Hashmi, S. M. Usman, Hussain, Muntazir, Muslim, Fahad Bin, Inayat, Kashif, and Hwang, Seong Oun

Subjects
Computer Science - Networking and Internet Architecture, Electrical Engineering and Systems Science - Signal Processing
Abstract

Time synchronization in any distributed network can be achieved by using application layer protocols for time correction. Time synchronization method proposed in this article uses symbol timing recovery at the physical layer to correct application layer clock. This cross layer methodology diminishes the quantity of message trades needed by application layer for time synchronization thus resulting in energy saving. Precision of skew estimate can be increased by using multiple message exchanges. Examination of the cross layer strategy including the simulation results, the experimentation outcomes and mathematical analysis demonstrates that clock skew at physical layer is same as of application layer, which is actually the skew of hardware clock within the node.

Published
2020
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28. Observer‐based leader‐following consensus of one‐sided Lipschitz multi‐agent systems over input saturation and directed graphs.

Author

Razaq, Muhammad Ahsan, Rehan, Muhammad, Hussain, Muntazir, Ahmed, Shakeel, and Hong, Keum‐Shik

Subjects
MULTIAGENT systems, DIRECTED graphs, MATRIX inequalities, SPANNING trees, CARTESIAN coordinates, NONLINEAR systems
Abstract

This paper investigates a local observer‐based leader‐following consensus control of one‐sided Lipschitz (OSL) multi‐agent systems (MASs) under input saturation. The proposed consensus control scheme has been formulated by using the OSL property, input saturation, directed graphs, estimated states, and quadratic inner‐boundedness condition by attaining the regional stability. It is assumed that the graph always includes a (directed) spanning tree with respect to the leader root to develop matrix inequalities for investigating parameters of the proposed observer and consensus protocols. Further, a new observer‐based consensus tracking method for MASs with saturation, concerning independent topologies for communicating outputs and estimates over the network, is explored to deal with a more perplexing and realistic situation. In contrast to the traditional methods, the proposed consensus approach considers output feedback and deals with the input saturation for a generalized class of nonlinear systems. The efficiency of the obtained results is illustrated via application to a group of five moving agents in the Cartesian coordinates. [ABSTRACT FROM AUTHOR]

Published
2023
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32. Laryngeal Embryonal Rhabdomyosarcoma: A rare adult neoplasm

Author

Hafiz Yusuf, Farah, primary, Shaikh, Irfan, additional, Hussain, Muntazir, additional, Arif, Aabiya, additional, Rahim, Danish, additional, Hafeez Siddiqui, Atif, additional, Farrukh, Shuja, additional, Saleem Tebha, Sameer, additional, and Huma, Zil e, additional

Published
2022
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33. Sectarianism in Gilgit-Baltistan: An Analytical Study.

Author

Iftikhar, Gohar Ali and Hussain, Muntazir

Subjects
SECTARIAN conflict, SECTARIANISM, RELIGIOUS identity, ETHNICITY, CIVIC leaders
Abstract

Gilgit-Baltistan, a Northern Pakistani region, is the study's focus. This paper investigates the historical, social, and political factors contributing to sectarian violence in the area, including the role of ethnic and religious identities, geopolitical dynamics, and state policies. The research draws on various sources, including media reports, academic studies, and videos. The paper argues that sectarianism in Gilgit-Baltistan is a multifaceted and multidimensional phenomenon that requires a nuanced understanding of local contexts and dynamics. The paper concludes by offering recommendations for policymakers and community leaders to address the root causes of sectarianism and promote peaceful coexistence in the region. [ABSTRACT FROM AUTHOR]

Published
2023

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