Multiuser Detection Based on Particle Swarm Optimization Algorithm over Multipath Fading Channels

Zhen-qing GUO  Yang XIAO  Moon Ho LEE  

IEICE TRANSACTIONS on Communications   Vol.E90-B   No.2   pp.421-424
Publication Date: 2007/02/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.2.421
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
particle wireless signal processing,  swarm optimization (PSO),  CDMA,  multiuser detection (MUD),  MAI,  multipath,  

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The Multiple Access Interference (MAI) and the Multipath Fading (MPF) restrict the performance of Code-Division Multiple-Access (CDMA) systems. The Multiuser Detection (MUD) based on Particle Swarm Optimization algorithm (PSO) with Rake processing is proposed in this paper to overcome these obstacles, followed by full details of how to apply the Binary PSO MUD (BPSO-MUD) on a CDMA system. Simulations show that the BPSO-MUD has significantly better performance than the Conventional Detection (CD).