Publication:
Channel estimation and multipath diversity reception for RIS-empowered broadband wireless systems based on cyclic-prefixed single-carrier transmission

dc.contributor.coauthorLi, Qiang
dc.contributor.coauthorWen, Miaowen
dc.contributor.coauthorAlexandropoulos, George C.
dc.contributor.coauthorKim, Kyeong Jin
dc.contributor.coauthorPoor, H. Vincent
dc.contributor.departmentDepartment of Electrical and Electronics Engineering
dc.contributor.kuauthorBaşar, Ertuğrul
dc.contributor.schoolcollegeinstituteCollege of Engineering
dc.date.accessioned2025-01-19T10:29:02Z
dc.date.issued2023
dc.description.abstractIn this paper, a cyclic-prefixed single-carrier (CPSC) transmission scheme with phase shift keying (PSK) signaling is presented for broadband wireless communications systems empowered by a reconfigurable intelligent surface (RIS). In the proposed CPSC-RIS, the RIS is configured according to the transmitted PSK symbols such that different cyclically delayed versions of the incident signal are created by the RIS to achieve multipath diversity. A practical and efficient channel estimator is developed for CPSC-RIS and the mean square error of the channel estimation is expressed in closed-form. We analyze the bit error rate (BER) performance of CPSC-RIS over frequency-selective Nakagami-m fading channels. An upper bound on the BER is derived by assuming maximum-likelihood detection. Furthermore, by applying the concept of index modulation (IM), we propose an extension of CPSC-RIS, termed CPSC-RIS-IM, which enhances the spectral efficiency. In addition to conventional constellation information of PSK symbols, CPSC-RIS-IM uses the full permutations of cyclic delays caused by the RIS to carry information. A sub-optimal receiver is designed for CPSC-RIS-IM to aim at low computational complexity. Our simulation results in terms of BER corroborate the performance analysis and the superiority of CPSC-RIS(-IM) over the conventional CPSC without an RIS and orthogonal frequency division multiplexing with an RIS.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue8
dc.description.openaccessGreen Submitted
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorship& nbsp;This work was supported in part by the National Natural Science Foundation of China under Grant 62201228 and Grant 61871190, in part by the Guangdong Basic and Applied Basic Research Foundation under Grant 2020A1515110470 and Grant 2021B1515120067, in part by the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant 120E401, in part by the European Union Horizon 2020 RISE-6G Project under Grant 101017011, and in part by the U.S. National Science Foundation under Grant CCF-1908308 and Grant CNS-2128448.
dc.description.volume22
dc.identifier.doi10.1109/TWC.2022.3232072
dc.identifier.eissn1558-2248
dc.identifier.issn1536-1276
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85147229924
dc.identifier.urihttps://doi.org/10.1109/TWC.2022.3232072
dc.identifier.urihttps://hdl.handle.net/20.500.14288/25813
dc.identifier.wos1050132500012
dc.keywordsChannel estimation
dc.keywordsCyclic delay diversity
dc.keywordsCyclic-prefixed single
dc.keywordsCarrier
dc.keywordsIndex modulation
dc.keywordsReconfigurable intelligence surface
dc.language.isoeng
dc.publisherIEEE-Inst Electrical Electronics Engineers Inc
dc.relation.grantnoNational Natural Science Foundation of China [62201228, 61871190]; Guangdong Basic and Applied Basic Research Foundation [2020A1515110470, 2021B1515120067]; Scientific and Technological Research Council of Turkey (TUBITAK) [120E401]; European Union [101017011]; U.S. National Science Foundation [CCF-1908308, CNS-2128448]
dc.relation.ispartofIEEE Transactions on Wireless Communications
dc.subjectEngineering, electrical and electronic
dc.subjectTelecommunications
dc.titleChannel estimation and multipath diversity reception for RIS-empowered broadband wireless systems based on cyclic-prefixed single-carrier transmission
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorBaşar, Ertuğrul
local.publication.orgunit1College of Engineering
local.publication.orgunit2Department of Electrical and Electronics Engineering
relation.isOrgUnitOfPublication21598063-a7c5-420d-91ba-0cc9b2db0ea0
relation.isOrgUnitOfPublication.latestForDiscovery21598063-a7c5-420d-91ba-0cc9b2db0ea0
relation.isParentOrgUnitOfPublication8e756b23-2d4a-4ce8-b1b3-62c794a8c164
relation.isParentOrgUnitOfPublication.latestForDiscovery8e756b23-2d4a-4ce8-b1b3-62c794a8c164

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