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Minimum bit error rate multiuser detection of SDMA-OFDM system using differential evolutionary algorithm

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3 Author(s)
Jehad I. Ababneh ; Department of Electrical Engineering, Jordan University of Science and Technology, Irbid, Jordan ; Taimour F. Aldalgamouni ; Asmaa A. Alqudah

Space division multiple access aided orthogonal frequency division multiplexing (SDMA-OFDM) is a promising technique for high data rate future wireless communications. In this paper, a minimum bit error rate (MBER) differential evolution (DE) algorithm based multiuser detector (MUD) for SDMA-OFDM system is proposed. The proposed algorithm directly minimizes the bit error rate (BER) cost function by selecting the optimum weight vectors. Simulation results show that the proposed DE based MUD outperforms the minimum mean-squared error (MMSE) based MUD in terms of the achievable BER. Simulation results also show that the performance of the DE based MUD is comparable to that of the particle swarm optimization (PSO) based MUD.

Published in:

2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications

Date of Conference:

11-13 Oct. 2010