A Discrete Quantum-Behaved PSO And Its Multiuser Detection Application

摘要：

This paper proposes a discrete quantum-behaved particle swarm optimization (DQPSO) and applies it to realize the multiuser detection for multicarrier code-division multiple-access (MC-CDMA) systems. The continuous quantum-behaved particle swarm optimization (QPSO) is extended to the discrete scenario. To prevent the premature convergence of DQPSO, the equilibrium position is generated by balancing the cognitive and social parts, and the contraction-expansion coefficient is set elaborately to guarantee the adequate perturbation needed by the discrete optimizations. Simulations and comparisons with the PSO and the maximum likelihood detection (MLD) show that the proposed DQPSO has superior stable-status performance.

关键词： MC-CDMA multiuser detection DQPSO

作者: Liu Hongwu

作者单位: School of Information Engineering Nanchang Hangkong University

会议类型: 国际会议

会议名称: 2009 IEEE International Conference on Intelligent Computing and Intelligent Systems(2009 IEEE 智能计算与智能系统国际会议)

会议地点: 上海

会议语种:英文

页码: 2381-2384

在线出版日期: 2009-11-20（万方平台首次上网日期，不代表论文的发表时间）