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An optimum pre-filter for ICA based multi-input multi-output OFDM system
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An optimum pre-filter for ICA based multi-input multi-output OFDM system

Khosravy, M

An optimum pre-filter for ICA based multi-input multi-output OFDM system

Khosravy, M ; Sharif University of Technology

215 Viewed
  1. Type of Document: Article
  2. Abstract:
  3. This paper presents an optimum pre-filter for ICA based multi-input multi-output OFDM system. In our former work, we presented a pre-filter solution for multiuser reconstruction in ICA based MIMO-OFDM systems [1,2]. Here, based on the structure of the system and former pre-filter solution, an optimization problem has been designed to give us the optimum pre-filter. The designed problem is based on minimization of the estimation error of ambiguities inherent to ICA in reconstruction of the data after separation. The optimization problem is mathematically solved and a set of optimized coefficients are obtained. Among the obtained set as optimum coefficients, optimum coefficients are acquired in a way not only minimize the estimation error of multiuser data reconstruction, but also lead the least error probability in detection of demodulated symbols
  4. Keywords:
  5. Blind equalization ; Data reconstruction ; Error probabilities ; Estimation errors ; MIMO-OFDM systems ; Multi-input multi-output ; Multi-user ; OFDM ; OFDM systems ; Optimization problems ; Chemical detection ; Error detection ; MIMO systems ; Optimization ; Orthogonal frequency division multiplexing ; Orthogonal functions ; Probability ; Telecommunication systems ; Independent component analysis
  6. Source: International Journal of Innovative Computing, Information and Control ; Volume 7, Issue 6 , June , 2011 , Pages 3499-3508 ; 13494198 (ISSN)
  7. URL: http://www.ijicic.org/contents.htm