北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2004, Vol. 27 ›› Issue (4): 64-68.

• 综述 • 上一篇    下一篇

MIMO衰落信道的多用户分集性能分析

周 华, 杨大成, 马 敏   

  1. 北京邮电大学 电信工程学院, 北京 100876
  • 收稿日期:2003-05-26 出版日期:2004-04-28
  • 作者简介:周 华(1973—), 男, 博士生. E-mail:y9972061@bupt.edu.cn;杨大成(1951—), 男, 教授, 博士生导师. E-mail:yangdc@bupt.edu.cn
  • 基金资助:

    国家“ 973”基金项目( G1998030409)

On the Performance of Multi-User Diversity Gain in MIMO Fading Channel

ZHOU Hua, Y AN G Da-cheng, M A Min   

  1. Telecomm unicati on Engineering School, Beijing Univ ersi t y of Pos ts and Telecommu ni cati ons, Beijing 100876, China
  • Received:2003-05-26 Online:2004-04-28

摘要:

利用秩统计量和随机矩阵的理论分析了单天线和多天线下的多用户分集增益的性能.结论是多输入多输出( MIMO)系统下的多用户分集随天线数的增加而减少. 另外,通过实例说明了在设计多用户M IM O系统收发机的结构时,除了多天线的空间复用增益是要考虑的因素之外,多用户分集增益也是应该考虑的因素.

关键词: 多输入多输出系统, 信道容量, 调度, 多用户分集, 空间复用

Abstract:

The performance of multi-user diversity gain (MDG) multiple input-multiple output (MIMO) fading channels is studied by the theoryof the order statistics and random matrices. It is found that the MDG decreases with the increase of the number of antennas. It is also pointed out that the total gain, which includes the MDG and spatial multiplexing gain (SMG), must be optimized when designing the multiuser MIMO communication systems.

Key words: multiple input-multiple output, channel capacity, scheduling, multiuser diversity, spatial multiplexing gain

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