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MIMO系统中MCMC检测算法的研究与改进 被引量：4

An Improved MCMC Detection Algorithm for MIMO Systems
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摘要 介绍了MIMO接收机模型,在分析LSD检测算法和MCMC检测算法基础上,提出了一种改进的MCMC检测算法.该算法通过在接收机中添加预判决模块,融合SIC-MMSE算法,有效利用信道译码器产生的软信息,辅助MIMO检测器中的吉布斯采样,减少了采样点数,降低了传统算法的复杂度.仿真结果显示,改进的MCMC算法性能上优于LSD算法,在相同的信噪比情况下降低了误码率,有一定的理论和实用意义. The LSD algorithm and MCMC algorithm are introduced in this paper.An improved MCMC detection algorithm is proposed.It reduces the number of samples and the complexity of the traditional algorithm by adding a pre-decision block in the receiver to assist the Gibbs sampling in MIMO detector.The simulation results show that the improved MCMC algorithm performs better than the LSD algorithm and achieves a lower BER at the same SNR point.
作者 肖珂 苏明超 郭书军
机构地区 北方工业大学信息工程学院
出处 《北方工业大学学报》 2009年第3期4-8,共5页 Journal of North China University of Technology
关键词 多天线系统 列表球形检测算法 马尔科夫链蒙特卡洛算法 MIMO LSD MCMC
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献6

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同被引文献36

  • 1李朝伟,王宏强,黎湘,庄钊文.一种基于Gibbs抽样的多信号源分辨方法[J].信号处理,2006,22(4):449-453. 被引量：3
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  • 4Blair W D,Brandt-Pearce M.Monopulse DOA estimation of twounresolved rayleigh targets[J].IEEE Transactions on Aerospaceand Electronic Systems,2001,37(2):452-469.
  • 5Zhang X,Willett P K,Bar-shalom Y.Monopulse radar detectionand localization of multiple unresolved targets via joint binprocessing[J].IEEE Transaction on Signal Processing,2005,53(4):1225-1236.
  • 6Isaac A,Willett P,Bar-Shalom Y.MCMC methods for trackingtwo closely spaced targets using monopulse radar channel signals[J].IET Radar Sonar Navig,2007,1(3):221-229.
  • 7Isaac A,Willett P,Bar-Shalom Y.Quickest detection andtracking of spawning targets using monopulse radar channelsignals[J].IEEE Transaction on Signal Processing,2008,56(3):1302-1308.
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引证文献4

二级引证文献10

北方工业大学学报
2009年 第3期

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