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Volume 31 Issue 1
Dec.  2010
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Liu Hong-wu, Feng Quan-yuan. Particle Swarm Optimization-Based and Receive-Diversity-Aided Multiuser Detection for STBC MC-CDMA Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 45-48. doi: 10.3724/SP.J.1146.2007.01205
Citation: Liu Hong-wu, Feng Quan-yuan. Particle Swarm Optimization-Based and Receive-Diversity-Aided Multiuser Detection for STBC MC-CDMA Systems[J]. Journal of Electronics & Information Technology, 2009, 31(1): 45-48. doi: 10.3724/SP.J.1146.2007.01205

Particle Swarm Optimization-Based and Receive-Diversity-Aided Multiuser Detection for STBC MC-CDMA Systems

doi: 10.3724/SP.J.1146.2007.01205
  • Received Date: 2007-11-02
  • Rev Recd Date: 2008-04-28
  • Publish Date: 2009-01-19
  • A Particle Swarm Optimization (PSO) based Multiuser Detection (MUD) is proposed for the receive- diversity-aided and Space-Time Block Coded Multi-Carrier Code-Division Multiple-Access (STBC-MC-CDMA) systems. Due to the receive-diversity, the signals received at the different antennas are faded independently, resulting in an independent cost function for each antenna. To resolve the multi-objective dilemma when choosing one signal estimation for multiple receive antenna-branches, the virtual Pareto front is introduced, and each particle updates its velocity and position in a Pareto optimal way. Simulations show that the proposed scheme has the enhanced capabilities of exploration and exploitation and has better performance than the conventional PSO and multi-objective genetic algorithm.
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