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首页> 外文期刊>IEEE Transactions on Vehicular Technology >Blind Decoding Based on Independent Component Analysis for a Massive MIMO Uplink System in Microcell Rician/Rayleigh Fading Channels
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Blind Decoding Based on Independent Component Analysis for a Massive MIMO Uplink System in Microcell Rician/Rayleigh Fading Channels

机译：微小区Rician / Rayleigh衰落信道中大规模MIMO上行链路系统基于独立分量分析的盲解码

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摘要

In a massive multiple-input–multiple-output (MIMO) uplink system, the pilot sequence reuse in neighboring cells causes pilot contamination, causing the decoding performance to degrade significantly. In this paper, a blind decoding method based on independent component analysis (ICA) is proposed without using pilot sequences. The proposed blind decoding method uses ICA to separate the received signals (from in-cell and neighboring cells) and estimate channels. The energy levels of the estimated channels are used to differentiate an in-cell signal from neighboring cell signals. The analytical performance results of the blind decoding method are derived. Numerical results show that the proposed blind decoding scheme outperforms minimum-mean-square-error (MMSE) decoding and zero-forcing (ZF) decoding with imperfect channel state information (CSI). The proposed scheme has only a negligible performance loss compared with MMSE decoding and ZF decoding with perfect CSI.
机译：在大规模多输入多输出（MIMO）上行链路系统中，相邻小区中的导频序列重用会导致导频污染，从而导致解码性能大幅下降。本文提出了一种不使用导频序列的基于独立分量分析的盲解码方法。所提出的盲解码方法使用ICA来分离接收到的信号（来自小区内和相邻小区）并估计信道。估计信道的能量水平用于将小区内信号与相邻小区信号区分开。推导了盲解码方法的分析性能结果。数值结果表明，所提出的盲解码方案在信道状态信息不完善的情况下，优于最小均方误差（MMSE）解码和迫零（ZF）解码。与具有完美CSI的MMSE解码和ZF解码相比，该方案的性能损失仅可忽略不计。

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  • 来源
    《IEEE Transactions on Vehicular Technology》 |2016年第10期|8322-8330|共9页
  • 作者

    Lei Shen; Yu-Dong Yao; Haiquan Wang; Huaxia Wang;

  • 作者单位

    School of Communications Engineering, Hangzhou Dianzi University, Hangzhou, China;

    Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ, USA;

    School of Communications Engineering, Hangzhou Dianzi University, Hangzhou, China;

    Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, NJ, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Decoding; MIMO; Uplink; Fading; Covariance matrices; Yttrium; Channel estimation;

    机译：解码;MIMO;上行链路;衰减;协方差矩阵;钇;信道估计;

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