华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (6): 21-24.

• 电子、通信与自动控制 • 上一篇    下一篇

空间相关莱斯快衰落信道下的MIMO系统性能

赖国庭 尹俊勋 喻华文   

  1. 华南理工大学 电子与信息学院,广东 广州 510640
  • 收稿日期:2004-11-10 出版日期:2006-06-25 发布日期:2006-06-25
  • 通信作者: 赖国庭(1977-),男,博士生,主要从事MIMO系统、OFDM调制技术及空时码性能方面的研究 E-mail:llggtt@sina.com
  • 作者简介:赖国庭(1977-),男,博士生,主要从事MIMO系统、OFDM调制技术及空时码性能方面的研究
  • 基金资助:

    国家自然科学基金资助项目(60101002)

Performance of MIMO System in Spatially Correlated Fast Rician Fading Channel

Lai Guo-ting  Yin Jun--xun  Yu Hua-wen   

  1. College of Electronic and Information Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2004-11-10 Online:2006-06-25 Published:2006-06-25
  • Contact: 赖国庭(1977-),男,博士生,主要从事MIMO系统、OFDM调制技术及空时码性能方面的研究 E-mail:llggtt@sina.com
  • About author:赖国庭(1977-),男,博士生,主要从事MIMO系统、OFDM调制技术及空时码性能方面的研究
  • Supported by:

    国家自然科学基金资助项目(60101002)

摘要: 考虑到多输入多输出(MIMO)系统的收发分集优势和空间相关莱斯快衰落信道的普遍性,根据多变量统计学理论,推导出了MIMO系统在空间相关莱斯快衰落信道下平均成对差错概率上界的闭合表达式,发现随着信道空间相关性的增强或者莱斯分量的下降,系统误码性能呈下降趋势,最后通过仿真实验验证了理论推导的正确性.

关键词: 多输入多输出系统, 空时编码, 莱斯衰落

Abstract:

By considering the advantages of MIMO(Muhi-Input Muhi-Output)system in transmitting and receiving diversity as well as the universality of spatially correlated fast fading Rician channels,a close-form solution to the upper bound of the average pairwise eiTor probability of MIMO system with spatially corelated fast Rician fading is derived based on the multivariate statistic theory.It is found that the system perform an ce tends to decrease when the
spatial corelation of channels increases or the Rician factor decreases.The corectness of the theory derivation is fi-nally verified by simulation.

Key words: multi-input multi-output system, space-time coding, Rician fading