北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (2): 75-79.doi: 10.13190/jbupt.200902.75.001

• 论文 • 上一篇    下一篇

对称信道条件下协作通信系统的中断概率

啜钢 林立凡 温小军 张路   

  1. 北京邮电大学 北京邮电大学 北京邮电大学 北京邮电大学
  • 收稿日期:2008-08-05 修回日期:2008-10-20 出版日期:2009-04-28 发布日期:2009-04-28
  • 通讯作者: 啜钢

Average Outage Probability of Cooperative Communication

System in Symmetric Wireless Networks

LIN Li-Fan CHUAI Gang WEN Xiao-Jun ZHANG Lu   

  • Received:2008-08-05 Revised:2008-10-20 Online:2009-04-28 Published:2009-04-28
  • Contact: CHUAI Gang

摘要:

基于对称信道给出了解码中继方式下等功率分配协作通信系统的系统平均中断概率的精确表达式. 在衡量系统中断概率时,考虑了源到目的节点链路,指出考虑这一链路增益所获得的性能增益. 分析结果表明,最优功率分配系数受系统总可用功率和网络结构大小的影响.

关键词: 协作通信, 中断概率, 功率分配

Abstract:

An analytical expression of the average outage probability on symmetric cooperative wireless networks is derived with consideration of the link gain between the source and the destination. Compared with schemes with no link gain, the study shows that it will improve the outage performance. Moreover, the power allocation problem is analyzed that the power is distributed equally between relays. It shows us that the optimal power allocation ratio is subjected to the total power in networks and to the networks size.

Key words: cooperative communication, outage probability, power allocation