A Multi-Relay-Selection Scheme with Cyclic Delay Diversity

被引：16

作者：

Li, Qiang ^{[1
]}

Yan, Qing ^{[1
]}

Teh, Kah C. ^{[2
]}

Li, Kwok H. ^{[2
]}

Hu, Yongxu ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Peoples R China

[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 02期

基金：

美国国家科学基金会;

关键词：

Cyclic delay diversity; diversity-multiplexing tradeoff (DMT); multi-relay selection; outage probability; COOPERATION;

D O I：

10.1109/LCOMM.2012.121912.122493

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In our proposed multi-relay-selection scheme with cyclic delay diversity (CDD), relays with spectral efficiency above a threshold are chosen to forward information, and a distinct cyclic shift is assigned to each selected relay. We derive an approximate expression of the end-to-end mutual information for the proposed scheme. We further analyze the outage probability and diversity-multiplexing tradeoff (DMT) performance. Numerical results show that the proposed scheme can realize full diversity and achieve the same outage probability and DMT performance as that of the selection cooperation scheme without the need for feedback information and strict synchronization among relays.

引用

页码：349 / 352

页数：4

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