A particle swarm optimization-based multiuser detection for receive-diversity-aided STBC systems

被引：37
|
作者：
Liu, Hongwu [1 ]
Li, Ji [1 ]
机构：
[1] SW Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
来源：
IEEE SIGNAL PROCESSING LETTERS | 2008年 / 15卷
关键词：
multi-objective optimization; multiuser detection; particle swarm optimization (PSO); space-time block coding (STBC);
D O I：
10.1109/LSP.2007.910315
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
引用
收藏
页码：29 / 32
页数：4
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