Full Text:   <659>

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CLC number: TN92

On-line Access: 2024-01-26

Received: 2022-12-27

Revision Accepted: 2023-05-18

Crosschecked: 2024-01-26

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Citations:  Bibtex RefMan EndNote GB/T7714


Yajun ZHAO


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Frontiers of Information Technology & Electronic Engineering  2023 Vol.24 No.12 P.1669-1688


Reconfigurable intelligent surfaces for 6G: applications, challenges, and solutions

Author(s):  Yajun ZHAO

Affiliation(s):  Beijing Institute of Technology, Beijing 100081, China; more

Corresponding email(s):   zhao.yajun1@zte.com.cn

Key Words:  6G, Reconfigurable intelligent surface (RIS), Cascade channel decoupling, RIS regulatory constraint, RIS system architecture, True time delay

Yajun ZHAO. Reconfigurable intelligent surfaces for 6G: applications, challenges, and solutions[J]. Frontiers of Information Technology & Electronic Engineering, 2023, 24(12): 1669-1688.

@article{title="Reconfigurable intelligent surfaces for 6G: applications, challenges, and solutions",
author="Yajun ZHAO",
journal="Frontiers of Information Technology & Electronic Engineering",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Reconfigurable intelligent surfaces for 6G: applications, challenges, and solutions
%A Yajun ZHAO
%J Frontiers of Information Technology & Electronic Engineering
%V 24
%N 12
%P 1669-1688
%@ 2095-9184
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%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.2200666

T1 - Reconfigurable intelligent surfaces for 6G: applications, challenges, and solutions
A1 - Yajun ZHAO
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 24
IS - 12
SP - 1669
EP - 1688
%@ 2095-9184
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.2200666

Scholars are expected to continue enhancing the depth and breadth of theoretical research on reconfigurable intelligent surface (RIS) to provide a higher theoretical limit for RIS engineering applications. Notably, significant advancements have been achieved through both academic research breakthroughs and the promotion of engineering applications and industrialization. We provide an overview of RIS engineering applications, focusing primarily on their typical features, classifications, and deployment scenarios. Furthermore, we systematically and comprehensively analyze the challenges faced by RIS and propose potential solutions including addressing the beamforming issues through cascade channel decoupling, tackling the effects and resolutions of regulatory constraints on RIS, exploring the network-controlled mode for RIS system architecture, examining integrated channel regulation and information modulation, and investigating the use of the true time delay (TTD) mechanism for RIS. In addition, two key technical points, RIS-assisted non-orthogonal multiple access (NOMA) and RIS-based transmitter, are reviewed from the perspective of completeness. Finally, we discuss future trends and challenges in this field.




Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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