In this study, a dual-hop cooperative communication system with radio frequency (RF) energy harvesting was investigated in two cases of linear and non-linear energy harvesting models. In the proposed system, the signal is transmitted directly from a source node to a destination node or sent with support of selected relay nodes. While both the source node and the destination node are powered normally, the relay nodes are powered by harvesting technique. To choose the best relay node, a selection combination method was applied at the destination node in both cases of amplify-and-forward and decode-and-forward protocols. To evaluate the system performance, the outage probability of the cooperative communications over independent identically distributed Nakagami- m was derived and analysed with arbitrary m parameter whereas this parameter was fixed to be integral value in previous research studies. Furthermore, the approximate and asymptotic operations are applied to simplify the outage probability expressions. The simulation program was developed based on the Monte Carlo method and MATLAB software with two aims of evaluating the system performance and verifying the theoretical results. The simulation results demonstrate that the analysis and evaluation of the study are considerably accurate.

中文翻译：

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分析协作通信网络的线性和非线性RF能量收集的中断概率

在这项研究中，在线性和非线性能量收集模型的两种情况下，研究了具有射频（RF）能量收集的双跳协作通信系统。在提出的系统中，信号直接从源节点传输到目标节点，或在选定中继节点的支持下发送。当源节点和目标节点均正常供电时，中继节点通过收割技术供电。为了选择最佳中继节点，在放大和转发协议以及解码和转发协议的情况下，都在目标节点处应用了选择组合方法。为了评估系统性能，在独立的相同分布的Nakagami-上进行协作通信的中断概率 米 被任意推导和分析 米参数，而该参数在先前的研究中固定为整数值。此外，应用近似和渐近运算来简化中断概率表达式。该仿真程序是基于蒙特卡罗方法和MATLAB软件开发的，旨在评估系统性能和验证理论结果两个目的。仿真结果表明，该研究的分析和评估非常准确。