Ajou University repository

Partition-Based RIS-Assisted Multiple Access: NOMA Decoding Order Perspective
Citations

SCOPUS

0

Citation Export

Publication Year
2022-08-01
Journal
IEEE Transactions on Vehicular Technology
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
IEEE Transactions on Vehicular Technology, Vol.71 No.8, pp.9083-9088
Keyword
multiple accessnon-orthogonal multiple access (NOMA)Reconfigurable intelligent surface (RIS)
Mesh Keyword
Complexity theoryMultiple accessNon-orthogonalNon-orthogonal multiple accessReconfigurableReconfigurable intelligent surfaceRelaySymbolTuning
All Science Classification Codes (ASJC)
Automotive EngineeringAerospace EngineeringComputer Networks and CommunicationsElectrical and Electronic Engineering
Abstract
In this correspondence, we propose a closed-form resource allocation called partition-based multiple access (MA), which simultaneously utilizes both a reconfigurable intelligent surface (RIS) and non-orthogonal multiple access (NOMA) to reduce processing overhead and transmit power. The RIS can tune the mmWave signal and reduce the downlink transmit power, and NOMA achieves a relatively higher spectral efficiency than other MA methods. The integration of the RIS and NOMA, thus, can be a powerful solution. Previous studies have yet to obtain a closed-form solution for both the beam tuning settings and the decoding order in low complexity in the conventional RIS-NOMA. The proposed partition-based MA method, however, divides and arranges the array elements of the RIS to generate a fine beam for NOMA communications. We compare the transmit power reduction of the proposed method with the transmit power reduction of time-sharing and decode-and-forward relay. To confirm the feasibility of the integration, we also derive the criteria for MA mode selection.
ISSN
1939-9359
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/32721
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85130828832&origin=inward
DOI
https://doi.org/2-s2.0-85130828832
Journal URL
http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=8039128&punumber=25
Type
Article
Show full item record

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Kim, Jae-Hyun Image
Kim, Jae-Hyun김재현
Department of Electrical and Computer Engineering
Read More

Total Views & Downloads

File Download

  • There are no files associated with this item.