数据采集与处理2019，Vol.34Issue(2)：242-251,10.DOI:10.16337/j.1004-9037.2019.02.006
基于分组内时间切换的无线信息与功率中继传输
Wireless Information and Power Relaying with In-Block Time Switching
摘要
Abstract
This paper investigates a wireless-powered relay network, in which a source transmits its signal to a destination with the aid of a decode-and-forward (DF) relay. Contrary to conventional DF relay networks, we consider the scenario that the DF relay has no sufficient embedded energy supply, and it is equipped with an energy harvesting unit and rechargeable battery. As such, it can accumulate the energy harvested from the source's signals before help forwarding the information. A harvest—transmit—store (HTS) model with in-block time switching (TS) is developed such that TS can be implemented within one transmission block. By modeling the finite-capacity battery of the relay as a finite-state Markov Chain with a two-stage state transition, we derive the closed-form expression for the outage probability of the proposed HTS model with in-block TS over Nakagami-m fading channels. Numerical results validate our theoretical analysis and show that the proposed HTS model with in-block TS significantly outperforms the HTS model without in-block TS in terms of outage probability and successful rate.关键词
能量收集/无线功率传输/译码转发中继/马尔科夫链Key words
energy harvesting/wireless power transfer/decode-and-forward relay/Markov chain分类
信息技术与安全科学引用本文复制引用
鲁聪聪,刘洪武..基于分组内时间切换的无线信息与功率中继传输[J].数据采集与处理,2019,34(2):242-251,10.基金项目
教育部留学回国人员科研启动基金(49批)资助项目 （49批）
山东省自然科学基金(ZR2014FL001)资助项目 （ZR2014FL001）
