Simple switch-based relay selection for amplify-and-forward cooperative diversity on rayleigh fading channels

2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2014-06-22 DOI:10.1109/SPAWC.2014.6941641

Y. Chau, M. Al-Harbawi

{"title":"Simple switch-based relay selection for amplify-and-forward cooperative diversity on rayleigh fading channels","authors":"Y. Chau, M. Al-Harbawi","doi":"10.1109/SPAWC.2014.6941641","DOIUrl":null,"url":null,"abstract":"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.","PeriodicalId":420837,"journal":{"name":"2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPAWC.2014.6941641","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 5

Abstract

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.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于开关的瑞利衰落信道放大转发合作分集的简单中继选择

解决了基于简单开关中继(SSR)选择的放大转发合作分集问题。使用SSR选择，双跳中继并不总是用于传输。只有当源到目的通道的信噪比(SNR)低于预设的阈值时，才逐个测试继电器，将其信噪比与阈值进行比较。如果SD信号不满意，在SSR选择方案中，选择信噪比大于阈值的第一个继电器，并使用最大比组合(MRC)将其信号与SD信号组合。与最佳中继选择方案相比，SSR选择方案可以节省总处理资源。为了进行性能评价，推导了BPSK在独立同分布平坦瑞利衰落信道上的误码率(BEP)和平均有源中继数(ANR)。给出了数值结果，以作性能说明和比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

自引率

0.00%

发文量