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Communications and Networking. 14th EAI International Conference, ChinaCom 2019, Shanghai, China, November 29 – December 1, 2019, Proceedings, Part I

Research Article

Maximum Ergodic Capacity of Intelligent Reflecting Surface Assisted MIMO Wireless Communication System

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  • @INPROCEEDINGS{10.1007/978-3-030-41114-5_25,
        author={Chang Guo and Zhufei Lu and Zhe Guo and Feng Yang and Lianghui Ding},
        title={Maximum Ergodic Capacity of Intelligent Reflecting Surface Assisted MIMO Wireless Communication System},
        proceedings={Communications and Networking. 14th EAI International Conference, ChinaCom 2019, Shanghai, China, November 29 -- December 1, 2019, Proceedings, Part I},
        proceedings_a={CHINACOM},
        year={2020},
        month={2},
        keywords={Intelligent reflecting surface Massive multiple-input multiple-output Ergodic capacity Semi-definite relax},
        doi={10.1007/978-3-030-41114-5_25}
    }
    
  • Chang Guo
    Zhufei Lu
    Zhe Guo
    Feng Yang
    Lianghui Ding
    Year: 2020
    Maximum Ergodic Capacity of Intelligent Reflecting Surface Assisted MIMO Wireless Communication System
    CHINACOM
    Springer
    DOI: 10.1007/978-3-030-41114-5_25
Chang Guo1, Zhufei Lu, Zhe Guo, Feng Yang1,*, Lianghui Ding1
  • 1: Department of Electronic Engineering
*Contact email: yangfeng@sjtu.edu.cn

Abstract

Intelligent reflecting surface (IRS) is currently adopted by massive multiple-input multiple-output (MIMO) systems as a new expansion scheme. It effectively copes with the increasing cost and energy consumption. In this paper, we concentrate on an IRS-assisted MIMO system, in which the base station, IRS and user are all equipped with multiple antennas. We first give the upper bound of the ergodic capacity of the system. Then we maximize this upper bound and obtain the sub-optimal phase shifts of IRS by applying semi-definite relax and Gaussian random methods. Numerical results shows the advantage of the proposed solution and the performance increase brought by multiple antennas.

Keywords
Intelligent reflecting surface Massive multiple-input multiple-output Ergodic capacity Semi-definite relax
Published
2020-02-27
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-030-41114-5_25
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