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Media-Aware Distributed Scheduling over Wireless Body Sensor Networks

Abstract : — Distributed scheduling for hybrid media flows over wireless body sensor network faces three technical challenges: constrained communication channel, random node placement and strict transmission latency. In this work, we study this problem by jointly considering the above three challenges to achieve the minimum media distortion and optimal network resource utilization. At first, we construct a general flow transmission model according to network's transmission mechanism, as well as media-aware flow's characteristics. Then, a distributed scheduling scheme is proposed based on dynamic network resource update. It is proved that the proposed scheme can achieve the optimal scheduling solution with an exponential convergence rate, and an explicit form of the asymptotic convergence rate is provided. Furthermore, the realization of the distributed scheduling scheme through the collaboration between the network and the sources is the highlight of this paper. Extensive simulation results are provided to demonstrate the effectiveness of our proposed scheme.
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Liang Zhou, Baoyu Zheng, Jingwu Cui, Benoit Geller. Media-Aware Distributed Scheduling over Wireless Body Sensor Networks. ICC, Jun 2011, Kyoto, Japan. ⟨10.1109/icc.2011.5962758⟩. ⟨hal-01225537⟩



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