The Experts below are selected from a list of 1059738 Experts worldwide ranked by ideXlab platform
Francis M. Bui - One of the best experts on this subject based on the ideXlab platform.
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Delay-Aware Optimization of Physical Layer Security in Multi-Hop Wireless Body Area Networks
IEEE Transactions on Information Forensics and Security, 2016Co-Authors: Hussein Moosavi, Francis M. BuiAbstract:Joint optimization of the physical layer security with End-to-End Delay management is studied in the uniquely constrained context of wireless body area networks (WBANs). A game-theoretic framework is proposed wherein body-worn sensor devices interact in the presence of wiretappers and under fading channel conditions to find the most secure multi-hop path to the hub, while adhering to the End-to-End Delay requirements imposed by the application. We model the problem as the search for a Nash network topology where no unilateral deviation in strategy by any single sensor node improves the secrecy of its transmissions, and provide a distributed algorithm guaranteed to converge to a Pareto-dominant Nash solution. The framework is evaluated through numerical simulations in conditions approximating actual deployment of WBANs for moving and stationary scenarios. Results validate the merits of the proposed framework to improve the security of transmissions compared with the star topology and IEEE 802.15.6 two-hop topology extension with a best-channel algorithm, at the expense of an admissible increase in the End-to-End Delay.
Hussein Moosavi - One of the best experts on this subject based on the ideXlab platform.
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Delay-Aware Optimization of Physical Layer Security in Multi-Hop Wireless Body Area Networks
IEEE Transactions on Information Forensics and Security, 2016Co-Authors: Hussein Moosavi, Francis M. BuiAbstract:Joint optimization of the physical layer security with End-to-End Delay management is studied in the uniquely constrained context of wireless body area networks (WBANs). A game-theoretic framework is proposed wherein body-worn sensor devices interact in the presence of wiretappers and under fading channel conditions to find the most secure multi-hop path to the hub, while adhering to the End-to-End Delay requirements imposed by the application. We model the problem as the search for a Nash network topology where no unilateral deviation in strategy by any single sensor node improves the secrecy of its transmissions, and provide a distributed algorithm guaranteed to converge to a Pareto-dominant Nash solution. The framework is evaluated through numerical simulations in conditions approximating actual deployment of WBANs for moving and stationary scenarios. Results validate the merits of the proposed framework to improve the security of transmissions compared with the star topology and IEEE 802.15.6 two-hop topology extension with a best-channel algorithm, at the expense of an admissible increase in the End-to-End Delay.
Ilia Baldine - One of the best experts on this subject based on the ideXlab platform.
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Multicast routing with End-to-End Delay and Delay variation constraints
IEEE Journal on Selected Areas in Communications, 1997Co-Authors: George N. Rouskas, Ilia BaldineAbstract:We study the problem or constructing multicast trees to meet the quality of service requirements of real-time interactive applications operating in high-speed packet-switched environments. In particular, we assume that multicast communication depends on: (1) bounded Delay along the paths from the source to each destination and (2) bounded variation among the Delays along these paths. We first establish that the problem of determining such a constrained tree is NP-complete. We then present a heuristic that demonstrates good average case behavior in terms of the maximum interdestination Delay variation. The heuristic achieves its best performance under conditions typical of multicast scenarios in high speed networks. We also show that it is possible to dynamically reorganize the initial tree in response to changes in the destination set, in a way that is minimally disruptive to the multicast session.
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Multicast routing with End-to-End Delay and Delay variation constraints
Proceedings of IEEE INFOCOM '96. Conference on Computer Communications, 1996Co-Authors: George N. Rouskas, Ilia BaldineAbstract:We study the problem of constructing multicast trees to meet the quality of service requirements of real-time, interactive applications operating in high-speed packet-switched environments. In particular, we assume that multicast communication depends on (a) bounded Delay along the paths from the source do each destination, and (b) bounded variation among the Delays along these paths. We first establish that the problem of determining such a constrained tree is NP-complete. We then derive heuristics that demonstrate good average case behavior in terms of the maximum inter-destination Delay variation of the final tree. We also show how to dynamically reorganize the initial tree in response to changes in the destination set, in a way that is minimally disruptive to the multicast session.
Shinsuke Tanaka - One of the best experts on this subject based on the ideXlab platform.
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improving end to end Delay through load balancing with multipath routing in ad hoc wireless networks using directional antenna
Lecture Notes in Computer Science, 2003Co-Authors: Dola Saha, Tetsuro Ueda, Somprakash Bandyopadhyay, Shinsuke TanakaAbstract:Multipath routing protocols are distinguished from single-path protocol by the fact that they use several paths to distribute traffic from a source to a destination instead of a single path. Multipath routing may improve system performance through load balancing and reduced End-to-End Delay. However, two major issues that dictate the performance of multipath routing – how many paths are needed and how to select these paths. In this paper, we have addressed these two issues in the context of ad hoc wireless networks and shown that the success of multipath routing depends on the effects of route coupling during path selection. Route coupling, in wireless medium, occurs when two routes are located physically close enough to interfere with each other during data communication. Here, we have used a notion of zone-disjoint routes to minimize the effect of interference among routes in wireless medium. Moreover, the use of directional antenna in this context helps to decouple interfering routes easily compared to omni-directional antenna.
Ehab Alshaer - One of the best experts on this subject based on the ideXlab platform.
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real time packet loss prediction based on end to end Delay variation
IEEE Transactions on Network and Service Management, 2005Co-Authors: Lopamudra Roychoudhuri, Ehab AlshaerAbstract:The effect of packet loss on the quality of real-time audio is significant. Nevertheless, Internet measurement experiments continue to show a considerable variation of packet loss, which makes audio error recovery and concealment challenging. We propose a novel framework to predict packet loss and congestion, based on measurements of End-to-End Delay variation and trend, enabling proactive error recovery and congestion avoidance. Our preliminary simulation and experimentation results with various sites on the Internet show the effectiveness and the accuracy of the Loss Predictor technique.
