A parallel form constant module algorithm for blind multi-user detection in a multicarrier CDMA receiver

  • Authors:

  • Daniel Tapia-Sanchez;Mariko Nakano-Miyatake;Hector Perez-Meana

  • Affiliations:

  • Mechanical and Electrical Engineering School, National Polytechnic Institute of Mexico, Mexico;Mechanical and Electrical Engineering School, National Polytechnic Institute of Mexico, Mexico;Mechanical and Electrical Engineering School, National Polytechnic Institute of Mexico, Mexico

  • Venue:
  • SIP'07 Proceedings of the 6th Conference on 6th WSEAS International Conference on Signal Processing - Volume 6
  • Year:
  • 2007

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Abstract

A blind adaptive multi-user detector for multi-carrier code-division multiple accesses (MC-CDMA) based on constant modulus algorithm (CMA) with an orthogonalized structures is proposed. The proposed system improves the performance of previously proposed blind MC-CDMA receiver by using a subband decomposition approach, in which the adaptation is carried out, independently, each band using the CMA to minimize a common error. Simulations shows that proposed approach reduce the computation cost while keeping a fairly good detection performance.