Article (Scientific journals)
Phase Shift Design for RIS-Aided Cell-Free Massive MIMO with Improved Differential Evolution
Chien, Trinh Van; Le, Cuong V.; Binh, Huynh Thi Thanh et al.
2023In IEEE Wireless Communications Letters, 12 (9), p. 1499 - 1503
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Keywords :
Cell-free massive MIMO; differential evolution; reconfigurable intelligence surface; Cell-free; Cell-free massive multiple-input and multiple-output; Correlation; Differential Evolution; Fadings channels; Massive multiple-input and multiple-output; Multiple input and multiple outputs; Optimisations; Reconfigurable; Reconfigurable intelligence surface; Uplink; Control and Systems Engineering; Electrical and Electronic Engineering
Abstract :
[en] This letter proposes a novel phase shift design for cell-free massive multiple-input and multiple-output (MIMO) systems assisted by reconfigurable intelligent surface (RIS), which only utilizes channel statistics to achieve the uplink sum ergodic throughput maximization under spatial channel correlations. Due to the non-convexity and the scale of the derived optimization problem, we develop an improved version of the differential evolution (DE) algorithm. The proposed scheme is capable of providing high-quality solutions within reasonable computing time. Numerical results demonstrate superior improvements of the proposed phase shift designs over the other benchmarks, particularly in scenarios where direct links are highly probable.
Disciplines :
Computer science
Author, co-author :
Chien, Trinh Van ;  Hanoi University of Science and Technology, School of Information and Communication Technology, Hanoi, Viet Nam
Le, Cuong V. ;  Hanoi University of Science and Technology, School of Information and Communication Technology, Hanoi, Viet Nam
Binh, Huynh Thi Thanh ;  Hanoi University of Science and Technology, School of Information and Communication Technology, Hanoi, Viet Nam
Ngo, Hien Quoc ;  Institute of Electronics, Communications and Information Technology, Queen's University Belfast, Belfast, United Kingdom
CHATZINOTAS, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
External co-authors :
yes
Language :
English
Title :
Phase Shift Design for RIS-Aided Cell-Free Massive MIMO with Improved Differential Evolution
Publication date :
September 2023
Journal title :
IEEE Wireless Communications Letters
ISSN :
2162-2337
eISSN :
2162-2345
Publisher :
Institute of Electrical and Electronics Engineers Inc.
Volume :
12
Issue :
9
Pages :
1499 - 1503
Peer reviewed :
Peer Reviewed verified by ORBi
FnR Project :
https://ieeexplore.ieee.org/document/10133823
Funders :
Hanoi University of Science and Technology
U.K. Research and Innovation Future Leaders Fellowships
Luxembourg National Fund (FNR)- RISOTTI–the Reconfigurable Intelligent Surfaces for Smart Cities
Funding text :
This research is funded by Hanoi University of Science and Technology (HUST) under project number T2022-TT-001. The work of Hien Quoc Ngo was supported by the U.K. Research and Innovation Future Leaders Fellowships under Grant MR/X010635/1. The work of Symeon Chatzinotas was supported by the Luxembourg National Fund (FNR)-RISOTTI the Reconfigurable Intelligent Surfaces for Smart Cities under Project FNR/C20/IS/14773976/RISOTTI
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