Paper Info
Title
Novel Multiple RIS-Assisted Communications for 6G Networks
Abstract
As an emerging technique, reconfigurable intelligent surface (RIS) has recently received extensive attention and can be considered as a key enabling technology for future sixth generation (6G) wireless communication networks. In this letter, we propose a novel multiple RIS-assisted single-input-single-output (SISO) wireless communication system working in a domino pattern when obscuration is severe. The upper bound of the ergodic capacity and the outage probability for the proposed system are analyzed and the corresponding closed-form expressions are provided under Nakagami- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$m$ </tex-math></inline-formula> fading channels. The general multiple RIS-assisted systems including two RISs and <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$K$ </tex-math></inline-formula> RISs are analyzed. Numerical results indicate that the number of RISs, the number of RIS elements, and the communication environment can significantly affect the upper bound of the ergodic capacity and the outage probability performance of the proposed system. The feasibility of the proposed system and the accuracy of the upper bound of the ergodic capacity and the outage probability are also verified by the numerical results.
Year
DOI
Venue
2022
10.1109/LCOMM.2022.3163587
IEEE Communications Letters
Keywords
DocType
Volume
Ergodic capacity,multiple RISs,Nakagami-m fading,outage probability,reconfigurable intelligent surface
Journal
26
Issue
ISSN
Citations 
6
1089-7798
0
PageRank 
References 
Authors
0.34
15
5
Name
Order
Citations
PageRank
Yongwei Wang100.34
Wensheng Zhang200.34
Yunfei Chen311745.25
C. X. Wang43694246.36
Jian Sun5547.33