Placement Optimization for Multi-IRS-Aided Wireless Communications: An Adaptive Differential Evolution Algorithm

Pei-Qiu Huang, Yu Zhou, Kezhi Wang*, Bing-Chuan Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Using intelligent reflecting surfaces (IRSs) is a promising approach to enhance the performance of wireless communication systems. In this paper, the placement optimization of multi-IRSs is investigated in multi-IRS-aided wireless communication systems, with the aim of minimizing the number of IRSs subject to the average achievable data rate. Then, an adaptive differential evolution algorithm is developed to jointly optimize the number, locations, and phase shift coefficients of IRSs, in which a novel strategy is devised to adaptively select the mutation operator for each individual. Compared with other algorithms, the proposed algorithm performs well in reducing the number of IRSs while satisfying the average achievable data rate.
Original languageEnglish
Number of pages5
JournalIEEE Wireless Communications Letters
DOIs
Publication statusPublished - 14 Feb 2022

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