Hybrid Linear Iterative Signal Detection Algorithm for Massive MIMO Systems

ZHANG Xiao-hua; PENG Xiao; HUANG Long

doi:10.13756/j.gtxyj.2022.02.012

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Hybrid Linear Iterative Signal Detection Algorithm for Massive MIMO Systems

更新时间：2022-06-15

- Hybrid Linear Iterative Signal Detection Algorithm for Massive MIMO Systems
- Study on Optical Communications Issue 2, Pages: 56-60(2022)
- 作者机构：
  
  重庆市信息通信咨询设计院有限公司，重庆　400041
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2022.02.012
  CLC： TN929.5
- Published：10 April 2022，
  
  Received：01 July 2021，
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ZHANG Xiao-hua, PENG Xiao, HUANG Long. Hybrid Linear Iterative Signal Detection Algorithm for Massive MIMO Systems. [J]. Study on Optical Communications (2):56-60(2022)
DOI：

ZHANG Xiao-hua, PENG Xiao, HUANG Long. Hybrid Linear Iterative Signal Detection Algorithm for Massive MIMO Systems. [J]. Study on Optical Communications (2):56-60(2022) DOI： 10.13756/j.gtxyj.2022.02.012.

摘要

针对大规模多输入多输出(MIMO)系统中线性最小均方误差(MMSE)信号检测算法复杂的高维矩阵求逆难以用于实际工程的问题，文章基于矩阵分块思想并结合Neumann级数展开算法，提出了一种低复杂度的混合迭代算法。利用MMSE算法中加权矩阵逆矩阵的Neumann级数二阶展开作为其分块矩阵求逆的迭代初始值，可以有效提高算法收敛速度。仿真结果表明，该方法能以较少迭代次数逼近传统MMSE算法较优检测性能，并降低计算复杂度。

Abstract

The linear Minimum Mean Square Error (MMSE) signal detection algorithm in the massive Multiple-Input Multiple-Output (MIMO) system is difficult to use in practical engineering due to the complex inversion of the high-dimensional matrix of the signal detection algorithm. In order to solve this problem

the article proposes a low-complexity hybrid iterative algorithm based on the idea of matrix block and combined with Neumann series expansion algorithm. Using the Neumann series second-order expansion of the inverse matrix of the weighted matrix in the MMSE algorithm as the initial value of the iterative inversion of the block matrix can effectively improve the convergence speed of the algorithm. The simulation results show that this method can have similar performance as the traditional MMSE algorithm with fewer iterations and lower complexity.

关键词

信号检测大规模多输入多输出混合迭代矩阵分块Neumann级数展开

Keywords

signal detectionmassive MIMOhybrid iterationmatrix blockNeumann series expansion

references

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申滨, 赵书锋, 黄龙杨. 基于Kaczmarz迭代的大规模MIMO系统低复杂度软输出信号检测[J]. 电子学报, 2018, 46(11): 2746-2752.

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