分布式RIS赋能的多用户毫米波大规模MIMO系统频谱效率分析

李光辉; 李文海; 马盼盼; 李睿峰; 唐曦

doi:10.12263/DZXB.20250031

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分布式RIS赋能的多用户毫米波大规模MIMO系统频谱效率分析

学术论文 | 更新时间：2025-12-10

- 分布式RIS赋能的多用户毫米波大规模MIMO系统频谱效率分析
- Spectral Efficiency Analysis of Distributed-RIS-Empowered Multi-User mmWave Massive MIMO Systems
- 电子学报 2025年53卷第7期页码：2500-2512
- 作者机构：
  
  海军航空大学，山东烟台264001
- 作者简介：
  
  李光辉　男，1996年4月出生于河南省商丘市.博士.现为海军航空大学讲师.主要研究方向为无线通信传输理论与技术.E-mail: ligh0305@163.com
  李文海　男，1969年7月出生于山东省滨州市.博士.现为海军航空大学教授，博士生导师.主要研究方向为电子设备测量与故障诊断.
  马盼盼　女，1995年11月出生于河南省永城市.硕士.现为海军航空大学助教.主要研究方向为移动无线通信.E-mail: panpanmadmu@163.com
  李睿峰　男，1992年11月出生于山东省潍坊市.博士.现为海军航空大学讲师.主要研究方向为电子设备测量与故障诊断.
  唐曦　男，1992年8月出生于湖南省永州市.硕士.现为海军航空大学讲师.主要研究方向为基于深度学习技术的航空电子装备测试大语义模型.
- 基金信息：
  
  山东泰山学者基金(TSTP20221146)
- DOI：10.12263/DZXB.20250031
  中图分类号： TN928
- 收稿：2025-01-08，
  
  修回：2025-05-06，
  
  纸质出版：2025-07-25
- 稿件说明：
移动端阅览
李光辉, 李文海, 马盼盼, 等. 分布式RIS赋能的多用户毫米波大规模MIMO系统频谱效率分析[J]. 电子学报, 2025, 53(07): 2500-2512.

LI Guang-hui, LI Wen-hai, MA Pan-pan, et al. Spectral Efficiency Analysis of Distributed-RIS-Empowered Multi-User mmWave Massive MIMO Systems[J]. Acta Electronica Sinica, 2025, 53(07): 2500-2512.
李光辉, 李文海, 马盼盼, 等. 分布式RIS赋能的多用户毫米波大规模MIMO系统频谱效率分析[J]. 电子学报, 2025, 53(07): 2500-2512. DOI：10.12263/DZXB.20250031

LI Guang-hui, LI Wen-hai, MA Pan-pan, et al. Spectral Efficiency Analysis of Distributed-RIS-Empowered Multi-User mmWave Massive MIMO Systems[J]. Acta Electronica Sinica, 2025, 53(07): 2500-2512. DOI：10.12263/DZXB.20250031

摘要

智能超表面（Reconfigurable Intelligent Surface，RIS）具有重构无线环境的能力，有望为未来通信网络提供新范式.然而，目前广泛研究的集中式RIS在服务多用户系统时具有覆盖能力差、复用增益低等诸多局限性.为此，本文提出了基于泊松点过程（Poisson Point Process，PPP）的分布式RIS部署架构，来增强多用户毫米波大规模多输入多输出（Multi-Input Multi-Output，MIMO）系统的通信性能.另外，本文根据毫米波信道最大增益路径的阵列响应设计了有源波束赋形与无源波束赋形，并在此基础上推导了遍历频谱效率的闭合表达式以便于分析功率缩放率，结果显示频谱效率与收发端天线数目、单个RIS上电磁元件数目的平方以及分布式RIS的部署密度成正比.仿真结果验证了理论分析的准确性，并表明RIS在性能提升方面优于其他有源器件.

Abstract

Reconfigurable intelligent surface (RIS) has the ability to reconstruct the wireless environment and is expected to provide a new paradigm for future communication networks. However

the widely studied centralized RIS has many limitations when served in multi-user systems

such as poor coverage ability and low multiplexing gain. To this end

we propose a distributed RIS deployment architecture based on Poisson point process (PPP) to enhance the communication performance of multi-user millimeter wave (mmWave) massive multi-input multi-output (MIMO) systems. Moreover

we design the active beamforming and passive beamforming based on the array responses of the maximum gain path in mmWave channels

and derive the closed-form expressions of the ergodic spectral efficiency to facilitate the analysis of the power scaling laws. The expressions show that the spectral efficiency is proportional to the number of transmitting/receiving antennas

the square of the number of elements on one RIS

and the density of distributed RISs. Simulation results verify the accuracy of the theoretical analyses

indicating that the RIS outperforms other active devices in terms of performance improvement.

关键词

Keywords

references

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