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

Khosravy, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/ICETC.2010.5529798
  3. Abstract:
  4. This paper presents an Optimum pre-filter for ICA based mulit-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 prefilter 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
  5. Keywords:
  6. Blind equalization ; Data reconstruction ; Error probabilities ; Estimation errors ; Independent components ; MIMO-OFDM systems ; Multi-output ; Multi-user ; OFDM ; OFDM systems ; Optimization problems ; Prefilters ; Chemical detection ; Decoding ; Error detection ; MIMO systems ; Optimization ; Orthogonal frequency division multiplexing ; Orthogonal functions ; Probability ; Repair ; Telecommunication systems ; Independent component analysis
  7. Source: ICETC 2010 - 2nd International Conference on Education Technology and Computer, 22 June 2010 through 24 June 2010 ; Volume 5 , 2010 , Pages V5129-V5133 ; 9781424463688 (ISBN)
  8. URL: http://ieeexplore.ieee.org/document/5529798