Joint Generalized Antenna Combination and Symbol Detection Based on Minimum Bit Error Rate: A Particle Swarm Optimization Approach

Hoang-Yang LU  Wen-Hsien FANG  Kyar-Chan HUANG  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.9   pp.3009-3012
Publication Date: 2008/09/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.9.3009
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
generalized antenna combination,  particle swarm optimization,  minimum bit error rate,  MIMO,  

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This letter proposes a novel scheme of joint antenna combination and symbol detection in multi-input multi-output (MIMO) systems, which simultaneously determines the antenna combination coefficients to lower the RF chains and designs the minimum bit error rate (MBER) detector to mitigate the interference. The joint decision statistic, however, is highly nonlinear and the particle swarm optimization (PSO) algorithm is employed to reduce the computational overhead. Simulations show that the new approach yields satisfactory performance with reduced computational overhead compared with pervious works.