论文标题
通过非线性能量收割机的无线电动无线电传感器网络的性能
Performance of Wireless Powered Cognitive Radio Sensor Networks With Nonlinear Energy Harvester
论文作者
论文摘要
这封信分析了Nakagami-m $ $ $ $ $ $ $ $ $ $ $ m $的覆盖认知无线网络（CRN）中同时无线信息传输（SWIPT）的性能。考虑了一对二级用户（SUS），其中一个SU促进了两个主要用户（PU）之间通信的继电器合作。作为回报，SUS利用主要用户的信号进行能源收集（EH）并实现自己的通信。在这样的网络中，可以分为三个阶段进行两个脓液与SUS之间的单向信息交换之间的端到端双向通信。采用基于功率的（PS）方法来启用旋转。继电器SU将放大和前向（AF）协议应用于广播主信号和次要信号，而PUS进行选择组合以访问主动直接链接。通过考虑在Nakagami-M下的中继SU处考虑非线性能量收割机，从而为主要系统得出了中断概率（OP）和吞吐量的准确表达。
This letter analyzes the performance of simultaneous wireless information-and-power transfer (SWIPT) in an overlay cognitive radio network (CRN) under Nakagami-$m$ fading. A pair of secondary users (SUs) is considered in which one SU facilitates relay cooperation for communications between two primary users (PUs). In return, SUs make use of primary users' signals for energy harvesting (EH) and realize their own communications. In such a network, end-to-end bidirectional communications between the two PUs and unidirectional information exchange between the SUs can be performed in three phases. A power splitting (PS) based approach is adopted for enabling SWIPT. The relaying SU applies an amplify-and-forward (AF) protocol to broadcast primary and secondary signals, whereas the PUs perform selection combining to access the active direct link. Accurate expressions of the outage probability (OP) and throughput are derived for the primary system by considering a nonlinear energy harvester at the relaying SU under Nakagami-m fading
