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 (1): 95-98.doi: 10.13190/jbupt.200901.95.chenshp

• 论文 • 上一篇    下一篇

解码转发协同中继网络多用户分集

陈书平 王文博 张兴   

  1. 泛网无线通信教育部重点实验室(北京邮电大学)
  • 收稿日期:2008-06-23 修回日期:2008-10-10 出版日期:2009-01-28 发布日期:2009-01-28
  • 通讯作者: 陈书平

Multiuser Diversity in Decode-and-Forward Cooperative Relay Networks

  1. Key Laboratory of Universal Wireless Communications, Ministry of Education(Beijing University of Posts and Telecommunications)
  • Received:2008-06-23 Revised:2008-10-10 Online:2009-01-28 Published:2009-01-28

摘要:

理论分析了协同中继网络中多用户分集的性能,推导得出了在解码转发方式下,基于多用户分集增益的系统中断概率和符号错误概率的闭式表达式。理论和仿真研究表明,在多用户协作中继网络中,运用多用户调度策略可获得较高的分集度增益. 多用户协作中继网络中的中继和接入用户均是有效的多用户分集增益源.

关键词: 协同中继通信, 多用户分集, 中断概率, 符号错误概率

Abstract:

The performance of multiuser diversity in cooperative relay networks is analyzed. Closed-form expressions of outage probability and symbol error probability for decode-and-forward (DF) based cooperative relay networks are derived. The deduction is validated by simulations which show that a (M+1)K-fold diversity gain can be achieved when adopting multiuser diversity based scheduling (where M is the number of available relay users and K is the number of accessing users). These results demonstrate that, in cooperative relay networks, both relay users and accessing users are source of the multiuser diversity gain.

Key words: cooperative relay communication, multiuser diversity, outage probability, symbol error probability