Volume 1, Issue 2 (6-2009)                   itrc 2009, 1(2): 11-19 | Back to browse issues page

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Ahadi Akhlaghi I, Khoshbin H, Rajabzadeh M. A Novel Method to Equalize Frequency-Selective MIMO Channels Using Genetic Algorithm and Singular Value Decomposition of Polynomial Matrice . itrc. 2009; 1 (2) :11-19
URL: http://ijict.itrc.ac.ir/article-1-290-en.html
1- Department of Electrical Engineering,Ferdowsi University of Mashhad,Mashhad,Iran
Abstract:   (1354 Views)

In this paper, it is first indicated that a given frequency-selective MIMO channel can be modeled with a matrix that each of its elements is a polynomial of unit delay variable z-1.Then, in order to cancel both inter-channel and inter-symbol interferences, a novel method based on singular value decomposition of polynomial matrices is introduced. In the proposed method, a genetic algorithm is used to find the optimum coefficients of the pre-coder and equalizer filter matrices. Applying these filters to the frequency-selective MIMO channel, converts it to some non­frequency-selective SISO channels. Therefore, both inter-channel and inter-symbol interferences are canceled. Simulation results show that the proposed method has a high performance.

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Type of Study: Research | Subject: Communication Technology

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