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一种组合的LSD和DFE V-BLAST检测算法 被引量：4

Combined LSD and DFE Detection for V-BLAST
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摘要 在多天线系统中,BLAST是提高系统通信容量的有效方式。最简单的空间复用方式是V-BLAST,它的检测算法相对简单,有ZF-DFE,MMSE-DFE,ML和ML-DFE等检测算法。该文在这几种算法的基础上,讨论了改进ML-DFE性能的方法,给出了ZF和MMSE方式的组合LSD和DFE检测算法。仿真表明LSD算法只需输出3个检测结果,在复杂度增加不多的条件下,就可以获得大的性能改进,而MMSE方式的算法较ZF算法有更好的性能。 BLAST can effectively increase information rate in multi-antenna system. The simplest space multiplex method is V-BLAST, which has simple detection algorithm＇such as ZF-DFE, MMSE-DFE, ML and ML-DFE etc. This paper discussed methods to improve the ML-DFE algorithm, proposed combined LSD and DFE detection algorithm based on ZF and MMSE criteria. Simulation results show that large performance improvement can be obtained when the LSD algorithm output only 3 detection results, and the algorithm based on MMSE criteria has better performance than based on ZF criteria.
作者 肖海勇 毕光国 金秀峰
机构地区 东南大学移动通信国家重点实验室
出处 《电子与信息学报》 EI CSCD 北大核心 2007年第1期143-147,共5页 Journal of Electronics & Information Technology
基金 国家自然科学基金重大项目(60496311)资助课题
关键词 列表球形译码 ZF LSD-DFE算法 MMSE-LSD-DFE算法 V-BLAST LSD ZF-LSD-DFE algorithm MMSE-LSD-DFE algorithm V-BLAST
分类号 TN92 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

  • 1Wolniansky P W, Foschiai G J, and Golden G D, et al.V-BLAST: An architecture for realizing very high data rates over the rich-scattering wireless channel. IEEE ISSSE'98.Pisa, Italy, Sept. 1998, 1: 295-300.
  • 2Hassibi B. An efficient square-root algorithm for BLAST. inP roc. IEEE Intl. Conf. Acoustic, Speech, Signal Processing,Istanbul, Turkey, June 2000: 5-9.
  • 3Hochwald B M and ten Brink S. Achieving near-capacity on a multiple-antenna channel. IEEE Trans. Comm,, 2003,51(3): 389-399.
  • 4Foschini G J, Golden G D, and Valenzuela R A, et al.Simplified processing for high spectral efficiency wireless communication employing multi-element arrays. IEEE J.SAC, 1999, 17(11): 1841-1852.
  • 5Choi W, Negi R, and Cioffi J M. Combined ML and DFE decoding for the V-BLAST system, in Proc. ICC 2000, New Orleans, LA, 2000: 1243-1248.
  • 6Golub G H and Van Loan C F. Matrix Computations, 3rd ed., Baltimore and London: The Johns Hopkins University Press. 1996, chapter 5.
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同被引文献24

  • 1Wolniansky P W,Foschini G J,Golden G D,et al.V-BLAST:an architecture for realizing very high data rates over the rich-scattering wireless channel[C]// Proc.of International Sympiumon Signals,Systems,and Electronics,IEEE Press,1998:295-300.
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  • 3Hochwald B M,Ten Brink S.Achieving near-capacity on a multiple-antenna channe1[J].IEEE Trans.on Communication,2003,51(3):389-399.
  • 4Benesty J,Huang Y,Chen J.A fast recursive algorithm for optimum sequential signal detection in a BLAST system[J].IEEE Trans.on Signal Processing,2003,51(1):1722-1730.
  • 5Liu T H,Lin Y,Liu Y.Modified fast recursive algorithm for efficient MMSE-SIC detection of the V-BLAST system[J].IEEE Trans.on Wireless Communications,2008,7(10):3713-3717.
  • 6Wubben D,Rinas J,Bohnke R,et al.Efficient algorithm for detecting layered space-time codes[C]//Proc.of ITG Conference on Source and Channel Coding,Berlin,Germany,2002:399-405.
  • 7Wubben D,Bohnke R,Kuhn V,et al.MMSE extension of V-BLAST based on sorted QR decomposition[C]//Proc.of IEEE Semiannual Vehicular Technology Conference,IEEE Press,2003:508-512.
  • 8Lee H,Jeon H,Jung H,et al.Signal detection using log-likelihood ratio based sorting QR decomposition for V-BLAST systems[C]//Proc.of IEEE Semiannual Vehicular Technology Conference,IEEE Press,2007:1881-1885.
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引证文献4

二级引证文献6

电子与信息学报
2007年 第1期

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