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首页> 外文期刊>International journal of ad hoc and ubiquitous computing >Improving sensor network performance with wireless energy transfer
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Improving sensor network performance with wireless energy transfer

机译：通过无线能量传输改善传感器网络性能

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摘要

Through recent technology advances in the field of wireless energy transmission wireless rechargeable sensor networks have emerged. In this new paradigm for wireless sensor networks a mobile entity called mobile charger (MC) traverses the network and replenishes the dissipated energy of sensors. In this work we first provide a formal definition of the charging dispatch decision problem and prove its computational hardness. We then investigate how to optimise the trade-offs of several critical aspects of the charging process. In the light of these optimisations, we study the impact of the charging process to the network lifetime for three characteristic underlying routing protocols. Finally, we propose a mobile charging protocol that locally adapts the circular trajectory of the MC to the energy dissipation rate of each sub-region of the network. We compare this protocol against several MC trajectories by a detailed experimental evaluation. The derived findings demonstrate significant performance gains.
机译：通过最新技术，无线能量传输领域中出现了无线可充电传感器网络。在这种用于无线传感器网络的新范式中，称为移动充电器（MC）的移动实体遍历网络并补充传感器的耗散能量。在这项工作中，我们首先提供充电调度决策问题的正式定义，并证明其计算难度。然后，我们研究如何优化充电过程中几个关键方面的权衡。根据这些优化，我们研究了三种基本路由协议的计费过程对网络寿命的影响。最后，我们提出了一种移动充电协议，该协议可以使MC的圆形轨迹局部适应网络每个子区域的能量耗散率。通过详细的实验评估，我们将该协议与几种MC轨迹进行了比较。派生的发现证明了明显的性能提升。

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