An Improved Blind Multiuser Detection Based on Subspace Tracking

HU Yan-jun

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An Improved Blind Multiuser Detection Based on Subspace Tracking

更新时间：2025-07-16

- An Improved Blind Multiuser Detection Based on Subspace Tracking
- Acta Electronica Sinica Vol. 33, Issue 6, Pages: 1073-1076(2005)
- 作者机构：
  
  1. 安徽大学电子学院通信工程系,安徽,合肥,230039
  2. 安徽大学电子学院通信工程系安徽合肥,230039
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN914.53
- Published：2005
- 稿件说明：
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HU Yan-jun. An Improved Blind Multiuser Detection Based on Subspace Tracking[J]. Acta Electronica Sinica, 2005, 33(6): 1073-1076.
DOI：

HU Yan-jun. An Improved Blind Multiuser Detection Based on Subspace Tracking[J]. Acta Electronica Sinica, 2005, 33(6): 1073-1076. DOI：

摘要

本文在常规子空间盲多用户检测方法的基础上进行改进

提出一种改进的子空间盲多用户检测方法.既考虑小区内用户的干扰

也考虑来自小区外用户的干扰

将接收信号空间可以分解成三个子空间

通过对子空间模型的修改和子空间跟踪算法的改进

解决快速矩阵分解的问题

降低接收机的复杂度

在收敛速度、稳定性方面也有所提高.

Abstract

The blind multiuser detection based on subspace tracking is studied.An improved detector is proposed.The conventional blind multiuser detectors based on subspace tracking consider only the in-cell users and neglect the inter-cell interference from out-of-cell users

while the improved blind multiuser detector takes into account both intra-cell and inter-cell interference.The observation space of received signal is partitioned into three subspaces

and the tracking algorithm is improved to decompose matrix rapidly.The detector exhibits faster convergence

higher stability and less complexity.

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