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Simplified CMOE Recursive Adaptive Multiuser Detection for MIMO MC-CDMA

ZHAO Fa-yong1，2, FENG Guang-zeng 1   

  1. 1. Department of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China；
    2. Department of Physics, Fuyang Normal College, Fuyang 236041, China

  • Received:2007-12-24 Revised:2008-05-29 Online:2008-09-27 Published:2008-09-27
  • Contact: ZHAO Fa-yong

Abstract:

This paper proposes a recursive adaptive algorithm of joint channel estimation and multi-user detection based on a simplified constraint minimum output energy (CMOE) criterion for space-time block codes (STBC) MIMO MC-CDMA. It solves the adaptive value of the variable diagonal loading. Optimal step-size semi-blind adaptive channel estimation is proposed for increasing convergence rate and accuracy. The channel estimation error and BER performances of different algorithm under different environments are compared.

Key words: space-time block codes (STBC), MIMO MC-CDMA, constraint minimum output energy (CMOE), optimal step-size semi-blind adaptive channel estimation, multi-user detection

CLC Number: