A Novel Method to Equalize Frequency-Selective MIMO Channels Using Genetic Algorithm and Singular Value Decomposition of Polynomial Matrice
| Autor: | Iman Ahadi Akhlaghi, Hossein Khoshbin, Morteza Rajabzadeh |
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| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | International Journal of Information and Communication Technology Research, Vol 1, Iss 2, Pp 11-19 (2009) |
| Druh dokumentu: | article |
| ISSN: | 2251-6107 2783-4425 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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