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Capacity analysis of MIMO system over Nakagami-m fading channels using Finite Mixture with Expectation Maximization algorithm

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2 Author(s)
Abualhaol, I.Y. ; Univ. of Mississippi, Oxford ; Matalgah, Mustafa M.

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 fading channels. 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 Nakagami-m 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 simplified the mathematical analysis of the average capacity and the outage capacity in terms of well known Q-functions.

Published in:

Computer Systems and Applications, 2008. AICCSA 2008. IEEE/ACS International Conference on

Date of Conference:

March 31 2008-April 4 2008

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