Cooperative Performance and Diversity Gain of Wireless Relay Networks

被引：8

作者：

Zhang, Shengbo ^{[2
]}

Xia, Xiang-Gen ^{[1
,3
]}

Wang, Jiangzhou ^{[4
]}

机构：

[1] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA

[2] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China

[3] Chonbuk Natl Univ, Jeonju, South Korea

[4] Univ Kent, Sch Engn & Digital Arts, Canterbury CT2 7NT, Kent, England

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2012年 / 30卷 / 09期

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

Space-time coding; wireless relay networks; error probability; cooperative diversity; asynchronous cooperative communication; RESOURCE-ALLOCATION; SYSTEMS; CODES; COMMUNICATION; TRADEOFF; SCHEME; CHUNK;

D O I：

10.1109/JSAC.2012.121005

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：

In this paper, the error rate performance and diversity gain of amplify-and-forward (AF) wireless relay networks are studied. The distributed space-time block code (DSTBC) in a synchronous relay network with multiple relay nodes is considered. The distributed linear dispersion code is used at the relays. The symbol (or codeword) error rate is studied in terms of upper and lower bounds through rigorous derivations, and the diversity gain of the DSTBC is derived, for any number of relay nodes. As a corollary, a necessary and sufficient condition is obtained for achieving full cooperative diversity. Arbitrary coding matrices at the relays, path loss and general linear power allocation are considered. Finally, the orthogonal frequency division multiplexing (OFDM)-based space-time transmission scheme in asynchronous cooperative networks is also discussed.

引用

页码：1623 / 1632

页数：10

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