Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (2): 404-410.doi: 10.3969/j.issn.1001-506X.2011.02.35

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PARALIND based blind multiuser detection algorithm in MIMO-CDMA system

LIU Xu1, XU Zong-ze2   

  1. 1. Jiangsu Key Laboratory of Wireless Communication, College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2. College of Information of Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Online:2011-02-28 Published:2010-01-03

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Abstract:

A new parallel profiles with linear dependencies (PARALIND)based blind multiuser detection algorithm in MIMO-CDMA system is proposed. Based on the uniqueness of PARALIND decomposition and the structure property of communication signals, this algorithm can detect MIMO-CDMA signals without any knowledge of the channel coefficients and users’ spreading codes. The uniqueness property of the PARALIND model with constant modulus (CM) structure is discussed, and the related uniqueness theorem is presented. Simulation results show that the algorithm has good symbol error rate performance and works well in small data block condition.

CLC Number: 

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