Secrecy Analysis of Uplink IM-OFDMA Systems in the Presence of IQ Imbalance

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dc.authorid0000-0001-5371-3758en_US
dc.authorid0000-0002-5017-5007en_US
dc.authorid0000-0001-6430-3009en_US
dc.authorid0000-0002-0766-9212en_US
dc.contributor.authorAlaca, Ozgur
dc.contributor.authorAlthunibat, Saud
dc.contributor.authorYarkan, Serhan
dc.contributor.authorMiller, Scott L.
dc.contributor.authorQaraqe, Khalid A.
dc.date.accessioned2023-11-08T12:18:46Z
dc.date.available2023-11-08T12:18:46Z
dc.date.issued2023en_US
dc.departmentFakülteler, Mühendislik ve Tasarım Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümüen_US
dc.description.abstractThis paper introduces the secrecy analysis of the index modulation-based orthogonal frequency division multiple access (IM-OFDMA) schemes by considering the in-phase and quadrature imbalance (IQI) presence at the users’ RF front ends. In particular, by assuming the existence of an eavesdropper, the secrecy performance of the considered uplink multiple-access sys tem is investigated through the strictly positive secrecy capacity and secrecy outage probability, and closed-form expressions are derived for both quantities. Moreover, the secrecy performance is conducted regarding IQI compensation based on a preamble based estimation method. Further, analysis of the impact of the different parameters of IM-OFDMA, IQI, and estimation method is included via analytical and simulation-based results. The results reveal that IM-OFDMA is more reliable in secrecy performance than OFDMA, regardless of whether IQI is present. Also, IQI compensation can lead to a better secrecy performance compared to the case of no IQI.en_US
dc.identifier.doi10.1109/TVT.2023.3285209en_US
dc.identifier.endpage15en_US
dc.identifier.scopus2-s2.0-85162706615en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://hdl.handle.net/11467/6955
dc.identifier.urihttps://doi.org/10.1109/TVT.2023.3285209
dc.identifier.wosWOS:001142619500047en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.relation.ispartofIEEE Transactions on Vehicular Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/embargoedAccessen_US
dc.subjectPhysical Layer Security, Strictly Positive Secrecy Capacity, Secrecy Outage Probability, IM-OFDMA, IQ Imbalances.en_US
dc.titleSecrecy Analysis of Uplink IM-OFDMA Systems in the Presence of IQ Imbalanceen_US
dc.typeArticleen_US

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