Capacity analysis of MIMO system over identically independent distributed weibull fading channels

被引:6
作者
Abualhaol, Ibrahim Y. [1 ]
Matalgah, Mustafa A. [1 ]
机构
[1] Univ Mississippi, Dept Elect Engn, Ctr Wireless Commun, University, MS 38677 USA
来源
2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14 | 2007年
关键词
D O I
10.1109/ICC.2007.826
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The capacity of multiple input multiple output (MIMO) system over wireless channels has been investigated analytically and by simulation over different types of wireless fading channels, such as Rayleigh and Nakagami-m fading channels. The capacity of MIMO system over Weibull fading channels has not been considered in the literature before because of the complexity in obtaining closed form expressions for either the probability of outage capacity or the average capacity. In this paper, Finite Mixture (FM) with Expectation-Maximization (EM) algorithm is utilized to derive simple approximate expression for the probability density function (pdf) of the capacity distribution over identically independent distributed (iid) Weibull fading channels. This approximation converts the complicated capacity distribution to a simple weighted sum of univariate normal distributions with appropriate weighting coefficients, means, and variances for a predefined system model and channel statistics. The resultant approximation simplifies the mathematical analysis of the average capacity and the outage capacity in terms of well known Q-functions.
引用
收藏
页码:5003 / 5008
页数:6
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