Outage Probability Analysis and Power Splitter Designs for SWIPT Relaying Systems With Direct Link

被引：94

作者：

Lee, Hoon ^{[1
]}

Song, Changick ^{[2
]}

Choi, Soo-Hwan ^{[1
]}

Lee, Inkyu ^{[1
]}

机构：

[1] Korea Univ, Sch Elect Engn, Seoul 136701, South Korea

[2] Korea Natl Univ Transportat, Dept Informat & Commun Engn, Chungju 27469, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Simultaneous wireless information and power transfer (SWIPT); power splitting (PS); relay; WIRELESS INFORMATION; PROTOCOLS; NETWORKS;

D O I：

10.1109/LCOMM.2016.2627055

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter investigates the outage performance for simultaneous wireless information and power transfer (SWIPT) relaying systems in the presence of direct link between the source and the destination. For the SWIPT, we employ a power splitter (PS) at the relay, which splits the received signal into the information transmission and the energy harvesting parts. First, we provide an analysis of the outage probability as a closed-form based on a high signal-to-noise ratio approximation. From the analysis, it is recognized that the diversity order of the SWIPT relaying systems equals that of the non-SWIPT cases. The closed-form outage expression also enables us to obtain a simple expression for the PS factor which minimizes the outage probability. Simulation results demonstrate the accuracy of the derived analysis and the efficiency of the proposed PS scheme.

引用

页码：648 / 651

页数：4

共 17 条

[1] Harvest-Then-Cooperate: Wireless-Powered Cooperative Communications [J].