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
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.
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