An amplify-and-forward and decode-and-forward mixed relay communication system and its performance analysis

被引：9
|
作者：
Guan, Z. -J. [1 ]
Zhou, X. -L. [2 ]
机构：
[1] Shanghai Radio Equipment Res Inst, Shanghai, Peoples R China
[2] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200030, Peoples R China
来源：
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2015年 / 28卷 / 02期
关键词：
relay communication system; decode-and-forward; amplify-and-forward; maximum ratio combining; NETWORKS;
D O I：
10.1002/dac.2646
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A kind of amplify-and-forward (AF) and decode-and-forward (DF) mixed relay communication system is proposed in this letter. The source broadcasts the signal to all the relays. Relays that can decode the signal adopt DF scheme to retransmit the signal, while the rest adopt AF scheme for retransmission. The destination employs maximum ratio combining technique to maximize the received signal-to-noise ratio. Another situation concerned in this letter is that when the relay cannot decode the source signal, it may retransmit the interference signal with AF scheme. Closed-form expressions of outage probability are derived. Simulation results show that the analytical curves agree with the simulated ones very well, and the AF-DF mixed relay system can improve the availability of the relays. Copyright (c) 2013 John Wiley & Sons, Ltd.
引用
收藏
页码：394 / 400
页数：7
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