Dynamic Power Splitting Schemes for Non-Linear EH Relaying Networks: Perfect and Imperfect CSI

Kaipeng Wang, Yongzhao Li, Yinghui Ye, Hailin Zhang
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引用次数: 15

Abstract

This paper considers a non-linear energy harvesting (EH) model, better reflecting the properties of practical circuits compared to the linear model, in an amplify-and-forward (AF) relaying network. We focus on the design of relay's power splitting scheme to optimize the system outage performance, and derive the optimal power splitting ratios with both perfect and imperfect channel state information (CSI), respectively. Using the dynamic power splitting scheme, we find that the system outage performance is enhanced in the low signal-to-noise ratio (SNR) regime while converging to an upper bound in the high SNR regime. This finding is significant since it illustrates that the nonlinearity of practical energy harvester brings changes to the design of relaying networks. Simulation results are provided to support our work.
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非线性EH中继网络的动态功率分割方案:完善与不完善的CSI
本文考虑了一种非线性能量收集(EH)模型,与线性模型相比,它能更好地反映实际电路的特性。重点设计了继电器的功率分割方案,以优化系统的中断性能,并分别推导了在完全信道状态信息(CSI)和不完全信道状态信息(CSI)下的最优功率分割比。利用动态功率分割方案,我们发现在低信噪比下系统的中断性能得到了提高,而在高信噪比下系统收敛到一个上界。这一发现具有重要意义,因为它说明了实际能量采集器的非线性会给继电网络的设计带来变化。仿真结果支持了我们的工作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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