发射分集系统在空间相关莱斯快衰落信道下的性能  

Performance of the Transmitted Diversity System under Spatial Correlated Fast Rician Fading

作　　者：陈其铭[1] 尹俊勋[1] 

机构地区：[1]华南理工大学电子与信息学院,广东广州510640

出　　处：《电讯技术》2004年第3期20-23,共4页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(60101002)

摘　　要：采用空时编码的发射分集系统的性能分析是当前移动通信研究领域的热点问题。相对准静态独立的瑞利衰落信道模型而言,空间相关莱斯快衰落信道更适用于实际情况。但由于在空间相关莱斯快衰落情况下,发射分集系统的性能分析比较复杂,因此关于这方面的论文较少。本文利用多变量统计学理论,得到发射分集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,并详细说明了信道特性对系统性能的影响。最后给出了仿真结果。The performance analysis of the transmitted diversity system that adopts space-time code is a hot spot in research cycle. Compared with the quasi-static rayleigh fading model, the spatial correlated fast rician fading is more general and more practical. Due to difficulties in deriving the probability density function, performance of transmitted diversity system is rarely reported. This paper derives the close-form solution of the upper bound of the average pairwise error probability of the transmitted diversity system under spatial correlated fast rician fading by the use of multivariate statistics. Furthermore, the effect of the characteristic of the mobile channel on the performance is described in detail. Finally, the simulation results are shown.

关 键 词：移动通信 发射分集 空时编码 莱斯衰落 

分 类 号：TN929.5[电子电信—通信与信息系统]