Performance analysis of otsm under hardware impairments and imperfect csi

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dc.contributor.authorDoosti Aref, Abed
dc.contributor.authorMasouros, Christos
dc.contributor.authorZhu, Xu
dc.contributor.authorBaşar, Ertuğrul
dc.contributor.authorÇöleri, Sinem
dc.contributor.authorArslan, Hüseyin
dc.date.accessioned2025-07-29T08:24:31Z
dc.date.available2025-07-29T08:24:31Z
dc.date.issued2024
dc.departmentİstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü
dc.description.abstractOrthogonal time sequency multiplexing (OTSM) has been recently proposed as a single-carrier waveform offering similar bit error rate to orthogonal time frequency space (OTFS) and outperforms orthogonal frequency division multiplexing (OFDM) in doubly-spread channels (DSCs); however, with a much lower complexity making it a potential candidate for 6G wireless networks. In this paper, the performance of OTSM is explored by considering the joint effects of multiple hardware impairments (HWIs) such as in-phase and quadrature imbalance (IQI), direct current offset (DCO), phase noise, power amplifier non-linearity, carrier frequency offset, and synchronization timing offset for the first time in the area. First, the discrete-time baseband signal model is obtained in vector form under all mentioned HWIs. Second, the system input-output relations are derived in time, delay-time, and delay-sequency (DS) domains in which the parameters of all mentioned HWIs are incorporated. Third, analytical expressions are derived for the pairwise and average bit error probability under imperfect channel state information (CSI) as a function of the parameters of all mentioned HWIs. Analytical results demonstrate that under all mentioned HWIs, noise stays additive white Gaussian, effective channel matrix is sparse, DCO appears as a DC signal at the receiver interfering with only the zero sequency, and IQI redounds to self-conjugated sequency interference in the DS domain. Simulation results reveal the fact that by considering the joint effects of all mentioned HWIs and imperfect CSI not only OTSM outperforms OFDM by 29% in terms of energy of bit per noise but it performs same as OTFS in high mobility DSCs.
dc.description.sponsorshipNational Natural Science Foundation of China (NSFC) ; Shenzhen Science and Technology Program (the Shenzhen Key Laboratory of Wireless AIoT Communications)
dc.identifier.citationDoosti Aref, A., Masouros, C., Zhu, X., Başar, E., Çöleri, S. ve Arslan, H. (2024). Performance analysis of otsm under hardware impairments and imperfect csi. IEEE Transactions on Vehicular Technology, 73(9), 12991-13006. http://dx.doi.org/10.1109/TVT.2024.3386817
dc.identifier.doi10.1109/TVT.2024.3386817
dc.identifier.endpage13006
dc.identifier.issn0018-9545
dc.identifier.issn1939-9359
dc.identifier.issue9
dc.identifier.scopus2-s2.0-85190167713
dc.identifier.scopusqualityQ1
dc.identifier.startpage12991
dc.identifier.urihttp://dx.doi.org/10.1109/TVT.2024.3386817
dc.identifier.urihttps://hdl.handle.net/20.500.12511/13027
dc.identifier.volume73
dc.identifier.wosWOS:001317694500114
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorArslan, Hüseyin
dc.institutionauthorid0000-0001-9474-7372
dc.language.isoen
dc.relation.ecinfo:eu-repo/grantAgreement/EC/FP7/62171161
dc.relation.ecinfo:eu-repo/grantAgreement/EC/FP7/ZDSYS20210623091808025
dc.relation.ecinfo:eu-repo/grantAgreement/EC/FP7/KQTD20190929172545139
dc.relation.ecinfo:eu-repo/grantAgreement/EC/FP7/GXWD20220817133854003
dc.relation.ispartofIEEE Transactions on Vehicular Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectOTFS
dc.subjectOTSM
dc.subjectPower Amplifier Nonlinearity
dc.titlePerformance analysis of otsm under hardware impairments and imperfect csi
dc.typeArticle

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