Performance Analysis of Novel Index Modulation-Based Non-Orthogonal Multiple Access Systems over Nakagami-m Fading Channels with Imperfect CSI

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dc.contributor.authorShwetha, H. M.
dc.contributor.authorAnuradha, S.
dc.coverage.issue3cs
dc.coverage.volume32cs
dc.date.accessioned2023-10-11T08:00:47Z
dc.date.available2023-10-11T08:00:47Z
dc.date.issued2023-09cs
dc.description.abstractIn this paper, a novel index modulation-based non-orthogonal multiple access (IM-NOMA) system is proposed and investigated for both perfect and imperfect channel state information (CSI) uncertainty over Nakagami-m fading channel. The proposed system has added advantages of NOMA and IM systems. NOMA supports more users by allowing all users to utilize the same resources simultaneously whereas IM boosts spectral efficiency by conveying information to the users through both constellation domain and index domain symbols. Maximum likelihood (ML) and successive interference cancellation (SIC) detectors are used at the receiver side to detect index and data symbols. The proposed system is analyzed for different values of Nakagami-m channel parameters as well as for three different CSI conditions - perfect, fixed, and MMSE-based variable CSI uncertainty. The simulation results for the bit error rate and spectral efficiency parameters show that the proposed system outperforms the existing NOMA and OMA schemes.en
dc.formattextcs
dc.format.extent425-437cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2023 vol. 32, č. 3, s. 425-437. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2023.0425en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/214336
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2023/23_03_0425_0437.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectNon-orthogonal multiple accessen
dc.subjectindex modulationen
dc.subjectNakagami-m fading channelen
dc.subjectimperfect CSIen
dc.subjectbit error rateen
dc.subjectspectral efficiencyen
dc.titlePerformance Analysis of Novel Index Modulation-Based Non-Orthogonal Multiple Access Systems over Nakagami-m Fading Channels with Imperfect CSIen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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