Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels

WANG Wei; LI Shao-hong; MAO Shi-yi; YANG Chen-yang

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Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels

更新时间：2025-07-16

- Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels
- Acta Electronica Sinica Vol. 29, Issue S1, Pages: 1799-1802(2001)
- 作者机构：
  
  北京航空航天大学电子工程系,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN929.533
- Published：2001
- 稿件说明：
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WANG Wei, LI Shao-hong, MAO Shi-yi, et al. Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels[J]. Acta Electronica Sinica, 2001, 29(S1): 1799-1802.
DOI：

WANG Wei, LI Shao-hong, MAO Shi-yi, et al. Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels[J]. Acta Electronica Sinica, 2001, 29(S1): 1799-1802. DOI：

摘要

在多径多址干扰DS-CDMA环境中

本文根据空时信号模型

用扩展的盲方法估计用户信道

从而进行盲MMSE检测.另外

针对全维处理运算量大及接收信号采样数需求量大的问题

本文通过最大化输出信杂噪比

借用雷达信号处理中的概念

推导出一种优于已有子空间方法的降维处理方法.仿真实验证实了上述方法的有效性.

Abstract

In DS-CDMA channels with multipath and multiple access interference

this paper estimates blindly the user-channel with extended space-time channel model to process the blind MMSE detection.Moreover

using the concept in radar

this paper proposes a kind of reduced-rank processing which outperforms the subspace method by maximizing the output signal-to-interference and noiseratio(SINR).Simulation results demonstrate the good performances of those methods.

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