Simple Switch-Based Relay Selection for Amplify-and-Forward Cooperative Diversity on Rayleigh Fading Channels

被引：0

作者：

Chau, Yawgeng A. ^{[1
]}

Al-Harbawi, Mostafa ^{[1
]}

机构：

[1] Yuan Ze Univ, Dept Commun Engn, Chungli, Taiwan

来源：

2014 IEEE 15TH INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS (SPAWC) | 2014年

关键词：

relay swithing; amplify-and-forward; maximal-ratio combining; BPSK; Rayleigh fading; DISTRIBUTED SWITCH; WIRELESS NETWORKS; PERFORMANCE; DECODE; OPTIMIZATION; SYSTEMS;

D O I：

暂无

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：

Amplify-and-forward cooperative diversity with simple switch-based relay (SSR) selection is addressed. With the SSR selection, dual-hop relaying is not always used for transmissions. Only when the signal-to-noise ratio (SNR) of the source-to-destination (SD) channel is lower than a preset threshold, the relays are tested one-by-one by comparing their SNR with the threshold. If the SD signal is not satisfied, with the SSR selection scheme, the first relay whose SNR is larger than the threshold is selected and its signal is combined with the SD signal by using maximal-ratio combining (MRC). The SSR selection scheme can save the total processing resource compared to the best-relay selection scheme. For performance evaluation, the bit error probability (BEP) of BPSK on independent and identically distributed (i.i.d.) flat Rayleigh fading channels is derived, and the average number of active relays (ANR) is also obtained. Numerical results are presented for performance illustrations and comparisons.

引用

页码：284 / 288

页数：5

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