Particle Swarm with Soft Decision for Multiuser Detection of Synchronous Multicarrier CDMA

Muhammad ZUBAIR; Muhammad Å. S. CHOUDHRY; Aqdas NAVEED; Ijaz Mansoor QURESHI

doi:10.1093/ietcom/e91-b.5.1640

Regular Section

Particle Swarm with Soft Decision for Multiuser Detection of Synchronous Multicarrier CDMA

Muhammad ZUBAIR, Muhammad Å. S. CHOUDHRY, Aqdas NAVEED, Ijaz Mansoor QURESHI

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Keywords: direct sequence code-division multiple access, particle swarm optimization, multiuser detection

JOURNAL RESTRICTED ACCESS

2008 Volume E91.B Issue 5 Pages 1640-1643

DOI https://doi.org/10.1093/ietcom/e91-b.5.1640

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Abstract

The computation involved in multiuser detection (MUD) for multicarrier CDMA (MC-CDMA) based on maximum likelihood (ML) principle grows exponentially with the number of users. Particle swarm optimization (PSO) with soft decisions has been proposed to mitigate this problem. The computational complexity of PSO, is comparable with genetic algorithm (GA), but is much less than the optimal ML detector and yet its performance is much better than GA.

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