Blind multiuser detection for MC-CDMA with antenna array

Authors:
Xiaofei Zhang;Gaopeng Feng;Xin Gao;Dazhuan Xu
Affiliations:
Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Department of Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
Venue:
Computers and Electrical Engineering
Year:
2010

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Abstract

We investigate the characteristics of the received signal as trilinear model for multi-carrier code division multiple access (MC-CDMA) system with antenna array, and propose a blind multiuser detection method for MC-CDMA system in this paper. The trilinear-based multiuser detection algorithm (Trilinear-MUDE) that we presented exploits the versatile diversity in MC-CDMA system while require neither channel information nor statistical characteristics. The algorithmic performance indicates that the proposed algorithm is very close to the nonblind MMSE method, and better than minimum output energy (MOE) receiver and matched filter. Numerical results also reveal its compatibility in condition of small sampling sizes.