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A Particle Swarm Optimization-Based Multiuser Detection for Receive-Diversity-Aided STBC Systems

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2 Author(s)
Hongwu Liu ; Southwest Jiaotong Univ., Chengdu ; Ji Li

This letter proposes a particle swarm optimization (PSO)-based multiuser detection (MUD) for the receive-diversity aided space-time block coding (STBC) systems. Due to the receive-diversity, the signals received at the different antennas are faded independently, resulting in an independent log-likelihood function (LLF) for each antenna. To resolve the multi-objective dilemma when choosing one signal estimation for multiple receive antenna-branches, each particle updates its velocity in a Pareto optimal way. Simulations and comparisons with the genetic algorithm and the maximum likelihood detection (MLD) verified the effectiveness of the proposed scheme.

Published in:

Signal Processing Letters, IEEE  (Volume:15 )