A Novel Method to Equalize Frequency-Selective MIMO Channels Using Genetic Algorithm and Singular Value Decomposition of Polynomial Matrice
Publish place: International Journal of Information and Communication Technology Research (IJICT، Vol: 1، Issue: 2
Publish Year: 1388
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ITRC-1-2_003
تاریخ نمایه سازی: 23 فروردین 1401
Abstract:
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-۱.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 non frequency-selective SISO channels. Therefore, both inter-channel and inter-symbol interferences are canceled. Simulation results show that the proposed method has a high performance.
Keywords:
Polynomial matrix , Frequency selector , Multiple Input Multiple Output Channels , Genetic Algorithm
Authors
Iman Ahadi Akhlaghi
Department of Electrical Engineering,Ferdowsi University of Mashhad,Mashhad,Iran
Hossein Khoshbin
Department of Electrical Engineering,Ferdowsi University of Mashhad,Mashhad,Iran
Morteza Rajabzadeh
Department of Electrical Engineering,Ferdowsi University of Mashhad,Mashhad,Iran