On the performance of opportunistic cooperative wireless networks

被引：32

作者：

Ding, Zhiguo ^{[1
]}

Gong, Yu ^{[1
]}

Ratnarajah, T. ^{[1
]}

Cowan, Colin F. N. ^{[1
]}

机构：

[1] Queens Univ Belfast, Belfast BT7 1NN, Antrim, North Ireland

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2008年 / 56卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

cooperative diversity; opportunistic relay selection; outage probability;

D O I：

10.1109/TCOMM.2008.060455

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：

The aim of this paper is to study the impact of channel state information on the design of cooperative transmission protocols. This is motivated by the fact that the performance gain achieved by cooperative diversity comes at the price of the extra bandwidth resource consumption. Several opportunistic relaying strategies are developed to fully utilize the different types of a priori channel information. The analytical and numerical results demonstrate that the use of such a priori information increases the spectral efficiency of cooperative diversity, especially at low signal-to-noise ratio.

引用

页码：1236 / 1240

页数：5

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