基于TS-OMP的IRS辅助毫米波大规模MIMO信道估计方案

doi:10.12305/j.issn.1001-506X.2026.03.32

系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (3): 1083-1090.doi: 10.12305/j.issn.1001-506X.2026.03.32

• 通信与网络 • 上一篇

基于TS-OMP的IRS辅助毫米波大规模MIMO信道估计方案

梁彦, 涂威洋(), 王俊清, 李飞

南京邮电大学通信与信息工程学院，江苏南京 210003

收稿日期:2024-11-27 出版日期:2026-03-25 发布日期:2026-04-13
通讯作者: 梁彦 E-mail:williamt899@163.com
作者简介:涂威洋（1997—），男，工程师，硕士，主要研究方向为大规模多输入多输出信道估计
王俊清（2001—），男，硕士研究生，主要研究方向为超大规模多输入多输出近场信道估计与码本设计
李　飞（1966—），女，教授，博士，主要研究方向为智能信息处理
基金资助:
国家自然科学基金（62271265）资助课题

IRS assisted millimeter wave massive MIMO channel estimation based on TS-OMP

Yan LIANG, Weiyang TU(), Junqing WANG, Fei LI

School of Communications and Information Engineering，Nanjing University of Posts and Telecommunications，Nanjing 210003，China

Received:2024-11-27 Online:2026-03-25 Published:2026-04-13
Contact: Yan LIANG E-mail:williamt899@163.com

摘要/Abstract

摘要：

针对智能反射面辅助的大规模多输入多输出毫米波系统中信道估计导频开销高的问题，提出了一种基于三重结构化正交匹配追踪（triple-structured orthogonal matching pursuit，TS-OMP）的信道估计方案。首先利用信道角度扩展特性，揭示了波束空间级联信道矩阵的三重结构化稀疏特性。基于上述结构稀疏特性，将信道估计问题表述为三重结构化稀疏信号恢复问题，并提出了一种TS-OMP信道估计算法。该算法首先估计部分用户的稀疏行索引和簇内列偏移量，再将稀疏行索引和簇内列偏移量作为先验信息估计所有用户的信道状态信息。仿真结果表明，该方案的性能和导频开销明显优于现有方案。

关键词: 信道估计, 智能反射面, 压缩感知, 毫米波, 角度扩展

Abstract:

To address the high pilot overhead in channel estimation for intelligent reflecting surface（IRS） assisted large-scale multiple-input multiple-output （MIMO） millimeter-wave systems, a channel estimation scheme based on the triple-structured orthogonal matching pursuit （TS-OMP） is proposed. By exploiting the angular spread characteristics of the channel, the triple-structured sparsity of the beamspace cascaded channel matrix is revealed. Leveraging this structured sparsity, the problem of channel estimation is reformulated as a problem of triple-structured sparse signal recovery. The proposed TS-OMP algorithm addresses this by first estimating the sparse row indices and intra-cluster column offsets for a subset of users. These estimated indices and offsets are then utilized as prior information to estimate the channel state information for all users. Simulation results demonstrate that the performance and pilot overhead of this scheme are significantly better than existing approaches.

Key words: channel estimation, intelligent reflecting surface, compressed sensing, millimeter wave, angular spread

中图分类号:

TN 929.5

梁彦, 涂威洋, 王俊清, 李飞. 基于TS-OMP的IRS辅助毫米波大规模MIMO信道估计方案[J]. 系统工程与电子技术, 2026, 48(3): 1083-1090.

Yan LIANG, Weiyang TU, Junqing WANG, Fei LI. IRS assisted millimeter wave massive MIMO channel estimation based on TS-OMP[J]. Systems Engineering and Electronics, 2026, 48(3): 1083-1090.

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参考文献 19

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算法	计算复杂度
Row-OMP	$ O(KQMN{\bar L_k}{\bar P_{{l_k}}}) $
S-OMP	$ O(KQMNL{\bar L_k}) $
DS-OMP	$ O(KQM) + O(KQNL{\bar P_l}{\bar L_k}^3{\bar P_{{l_k}}}^3) $
TS-OMP	$ O(k'QMNL) + O(k'{N^2}L{\bar P_l}) + O(KQNL{\bar P_l}{\bar L_k}{\bar P_{{l_k}}}) $

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基于TS-OMP的IRS辅助毫米波大规模MIMO信道估计方案

IRS assisted millimeter wave massive MIMO channel estimation based on TS-OMP

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