ABSTRACT Energy harvesting (EH) is an eminent solution to perpetuate the lifetime of energy-constrained relay nodes in wireless sensor networks (WSNs). This paper considers a multi-hop amplify-and-forward (AF) network in which relay nodes with EH capability harvest energy inherent in the source transmitted radio frequency (RF) signal and use the harvested energy for signal transmission. Based on the time switching and power splitting EH receiver designs, we have examined the performance of, (i) time switching based relaying (TSR) and (ii) power splitting based relaying (PSR) protocols in multi-hop AF network, with throughput as the figure of merit. The numerical analysis reveals that, PSR outperforms TSR at high signal-to-noise ratio (SNR) whereas TSR outperforms PSR at low SNR, in multi-hop AF-WSNs with energy harvesting.

中文翻译：

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多跳放大转发无线传感器网络中的 SWIPT

摘要 能量收集 (EH) 是一种卓越的解决方案，可延长无线传感器网络 (WSN) 中能量受限中继节点的使用寿命。本文考虑多跳放大转发 (AF) 网络，其中具有 EH 能力的中继节点收集源发射的射频 (RF) 信号中固有的能量，并将收集到的能量用于信号传输。基于时间切换和功率分配 EH 接收器设计，我们已经检查了多跳 AF 网络中（i）基于时间切换的中继（TSR）和（ii）基于功率分配的中继（PSR）协议的性能，以及吞吐量作为功​​绩。数值分析表明，在具有能量收集的多跳 AF-WSN 中，PSR 在高信噪比 (SNR) 时优于 TSR，而 TSR 在低 SNR 时优于 PSR。