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AuthorYang L.
AuthorMeng F.
AuthorHasna , Mazen
AuthorBasar E.
Available date2022-04-26T11:06:44Z
Publication Date2021
Publication NameIEEE Wireless Communications Letters
ResourceScopus
Identifierhttp://dx.doi.org/10.1109/LWC.2021.3068150
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85103298649&doi=10.1109%2fLWC.2021.3068150&partnerID=40&md5=f27adcae2e7f79f8c5a8ba8bce749c6e
URIhttp://hdl.handle.net/10576/30440
AbstractIn this work, in order to achieve higher spectrum efficiency, we propose a reconfigurable intelligent surface (RIS)-assisted multi-user communication uplink system. Different from previous work in which the RIS only optimizes the phase of the incident users' signal, we propose the use of the RIS to create a virtual constellation diagram to transmit the data of an additional user. We focus on the two-user case and develop a tight approximation for the probability distribution function (PDF) of the minimum distance between constellation points of both users. Then, based on the proposed statistical distribution, we derive the analytical expressions of the average bit error rate of the considered two users. The letter also shows the trade off between the performance of two users as a function of the proposed phase shift at the RIS.
SponsorNational Natural Science Foundation of China; Guangzhou Science and Technology Program key projects; Department of Education of Guangdong Province; Changsha Science and Technology Project
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectBit error rate
Distribution functions
Economic and social effects
Analytical expressions
Average bit-error rates
Constellation diagrams
Constellation points
Modulation schemes
Multiuser communication
Spectrum efficiency
Statistical distribution
Interlocking signals
TitleA Novel RIS-Assisted Modulation Scheme
TypeArticle
Pagination1359-1363
Issue Number6
Volume Number10
dc.accessType Abstract Only


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