Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (5): 1040-1042.

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Novel blind multiuser detector based on subspace in MC-CDMA

LIU Hui, ZHANG Fu-chun, HUANG Guo-hua   

  1. Dept. of Aviation Theory, Aviation Univ. of Air Force, Changchun 130022, China
  • Received:2007-12-06 Revised:2008-05-09 Online:2009-05-20 Published:2010-01-03

Abstract: A signal model of MC-CDMA systems by sampling chip-rate is constructed.With this model,the blind multiuser detection and iterative algorithm of MC-CDMA systems based on subspace projection are studied in the multipath fading channel.And the output of multi-user detection is combined by maximum ratio.The results of numerical simulation and performance analysis show that the detector has the favorable performance of eliminating MAI and multipath fading resistance.Besides,it can converge rapidly.

CLC Number: 

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