A Relay Selection Method for Bidirectional Wireless Cooperative Networks Based on the Log-Likelihood Ratio

被引：0
|
作者：
Alexan, Wassim [1 ]
El Mahdy, Ahmed [1 ]
机构：
[1] German Univ Cairo, Informat Engn & Technol, Cairo, Egypt
来源：
SPA 2015 SIGNAL PROCESSING ALGORITHMS, ARCHITECTURES, ARRANGEMENTS, AND APPLICATIONS | 2015年
关键词：
relay; bidrectional; network coding; diversity; DIVERSITY; PERFORMANCE;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Applying network coding to a wireless cooperative communication network always proves beneficial, in terms of gains in spatial diversity, improved coverage and channel capacity. In this paper, a relay-selection method for a bidirectional (two-way) wireless cooperative communication system is proposed. A single best relay node or set of relay nodes are selected to jointly forward the combined data streams from two users. The method is based on the value of the log-likelihood ratio of the received signal at each relay node in the system. Performance is measured in terms of bit error rate (BER) curves and outage probability curves. A comparison with opportunistic relaying is carried out.
引用
收藏
页码：134 / 138
页数：5
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