In this paper, we investigate energy efficient packet transmission strategies for wireless body area networks (WBANs) with rechargeable sensors. For practical implementations, we propose a multi-threshold based transmission strategy by taking into account the channel state, battery state and number of buffered packets in the system. A discrete Markov arrival process (DMAP) is introduced to jointly model channel correlations and energy allocations. After that, with given thresholds and corresponding energy allocations, a level dependent Quasi-Birth- and-Death Markov chain is constructed to evaluate the system performance. According to the derived performance metrics, we formulate an optimization problem to find optimal thresholds for energy efficiency maximization with reasonable performance provisioning. Extensive simulations are conducted to verify our proposed queueing analytical model and demonstrate perfor- mance gains of our proposed strategy.


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    Title :

    Energy Efficient Packet Transmission Strategies for Wireless Body Area Networks with Rechargeable Sensors


    Contributors:
    Zhao, Zhen (author) / Huang, Shiwei (author) / Cai, Jun (author)


    Publication date :

    2017-09-01


    Size :

    420138 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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