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基于瞬时混合结构的盲多用户检测 被引量：2

Blind multiuser detection based on instantaneous mixtures
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摘要 提出一种用于MIMO-OFDM系统中的盲多用户检测方法。基本思想是将现有的盲信源分离算法(BSS)应用到MIMO-OFDM系统的信号检测中。该算法从MIMO-OFDM系统中的频点角度出发,解决了BSS算法在存在时延的系统中的应用问题以及由于被分离后的信号重组而带来的不确定置换和通信系统中的复值信号性质所引发不确定的尺度变化问题。方法的有效性已通过计算机仿真得以验证。 A blind multiuser detection technique used in multiple-input multiple-output orthogonal frequency division multiplexing （MIMO-OFDM） systems was proposed. The basic thought is to apply the existing blind source separation （BSS） algorithm to the signal detection in MIMO-OFDM systems. From the viewpoint of frequency bin （FB）, the pro- posed method resolves the application problem of BSS algorithm in the systems with delay. In the meanwhile, the prob- lem of permutation indeterminacy which is brought by the recomposition from separated signals and the problem of the complex scaling indeterminacy caused by the complex signal nature in communication systems are also settled by it. Theoretical analysis and computer simulation confirm that the proposed method is valid.
作者 赵宸 郭滨 王珂
机构地区 吉林大学通信工程学院
出处 《通信学报》 EI CSCD 北大核心 2008年第2期134-140,共7页 Journal on Communications
关键词 盲检测 MIMO-OFDM系统 盲信源分离 瞬时混合结构 blind detection MIMO-OFDM system blind source separation instantaneous mixture
分类号 TN911.23 [电子电信—通信与信息系统]
  • 相关文献

参考文献10

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共引文献10

同被引文献13

  • 1高洪元,刁鸣,王冰.基于免疫克隆选择算法的多用户检测技术研究[J].系统仿真学报,2007,19(5):983-986. 被引量：6
  • 2Han Y,Ting S H, Guan Y L. High rate open-loop MIMOmulti-user downlink transmission scheme based on blindprecoding quasi-orthogonal space time block code [ J ]. IETCommunications,2009,3(11) : 1757 - 1768.
  • 3Zhang X F, Wang F, Xu D Z. Blind signal detectionalgorithm for MIMO-OFDM systems over multipath channelusing PARALIND model [ J ]. IET Communications,2011,5(5):606 -611.
  • 4Chen B S,Yang C Y,Liao W J. Robust fast time-varyingmultipath fading channel estimation and equalization forMIMO-OFDM systems via a fuzzy method [ J ]. IEEETransactions on Vehicular Technology,2012,61 (4) : 1599 -1609.
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通信学报
2008年 第2期

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