Joint Time Allocation and Power Splitting Schemes for Amplify-and-forward Relaying Network over Log-normal Fading Channel

Jianmei Shen, Yingting Liu, Hongwu Yang, Chun-man Yan
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引用次数: 4

Abstract

Wireless energy harvesting and power transfer in cooperative relaying networks is an efficient way to prolong the lifetime of energy-constrained nodes. Most of the existing works on this topic have been focused on Rayleigh fading channel which is used to study outdoor environments. In contrast, we propose a hybrid protocol (HP) which is a combination of the time-switching relaying (TSR) and power-splitting relaying (PSR). Two source nodes can exchange information with the help of an amplify-andforward (AF) relay node, the relay node is energy-constrained. The analytical expression of outage probability is derived. Numerical results also confirm that our proposed system can minimize the outage probability compared with the existing protocols and show that it is a green solution to improve system performance by reducing the threshold value. Furthermore, it is worth mentioning that the source transmit power can effectively change the system performance.
对数正常衰落信道上放大转发中继网络的联合时间分配和功率分割方案
协作中继网络中的无线能量收集和能量传输是延长能量受限节点寿命的有效途径。现有的研究大多集中在瑞利衰落信道上,用于研究室外环境。相反,我们提出了一种混合协议(HP),它是时间交换中继(TSR)和功率分割中继(PSR)的组合。两个源节点可以通过放大转发(AF)中继节点交换信息,中继节点能量有限。导出了停电概率的解析表达式。数值结果表明,与现有协议相比,本文提出的系统可以最大限度地降低中断概率,并通过降低阈值来提高系统性能。此外,值得一提的是,源发射功率可以有效地改变系统的性能。
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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