Reconfigurable Intelligent Surface Assisted Communications Using Dynamic Rotations

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we propose a rotatable reconfigurable intelligent surface (RIS) assisted system to enhance the transmission quality of wireless communications. The RIS is able to rotate for maximizing the cascaded channel gain dynamically. In particular, we first introduce a continuous-time propagation model for the rotatable RIS-aided communication system. Then, a rotation angle optimization problem is formulated and solved, which boosts the channel gain of the cascaded link. Besides, we derive the expression of the spectral efficiency for the proposed system. Numerical evaluations reveal that the dynamic rotation strategy can not only enhance spectral efficiency and reduce delay spread but is still effective when rotation errors exist.

Original languageEnglish
Title of host publication2022 IEEE 22nd International Conference on Communication Technology, ICCT 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages652-656
Number of pages5
ISBN (Electronic)9781665470674
DOIs
Publication statusPublished - 2022
Event22nd IEEE International Conference on Communication Technology, ICCT 2022 - Virtual, Online, China
Duration: 11 Nov 202214 Nov 2022

Publication series

NameInternational Conference on Communication Technology Proceedings, ICCT
Volume2022-November-November

Conference

Conference22nd IEEE International Conference on Communication Technology, ICCT 2022
Country/TerritoryChina
CityVirtual, Online
Period11/11/2214/11/22

Keywords

  • Reconfigurable intelligent surface
  • rotation angle optimization
  • spectral efficiency

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