Error analysis of OFDM-IM systems for beyond 5G: The effect of IQI at transceiver

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dc.authoriddeveli, ibrahim/0000-0001-5878-677X
dc.contributor.authorCeniklioğlu, Büşra
dc.contributor.authorDeveli, İbrahim
dc.contributor.authorCanbilen, Ayşe Elif
dc.date.accessioned2025-02-24T17:19:05Z
dc.date.available2025-02-24T17:19:05Z
dc.date.issued2024
dc.departmentFakülteler, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü
dc.description.abstractIt is well known that hardware impairments (HWIs) can worthy reduce the wireless system performance at high carrier frequencies by showing random effects. Most current researches for 5 GB systems assume that transmitters and receivers (transceivers) are perfectly equipped. But wireless transceivers (TxRx$$ {T}_x{R}_x $$) are affected by HWIs in practice. Considering the previous studies in the literature, it is reported that HWIs have devastating effects on the performance of OFDM and OFDM-index modulation (IM) systems with fading channels. In this paper, in-phase and quadrature phase imbalance (IQI), which is the one of most HWIs between transmitter and receiver in wireless communication systems, is examined on OFDM-IM system over Rayleigh and Nakagami-m$$ m $$ fading channels. Two well-known detectors, the maximum likelihood (ML) detector and the log-likelihood ratio (LLR) detector are used under the effect of the IQI at TxRx$$ {T}_x{R}_x $$. Error performance analyzes over fading channels of the IQI effect on OFDM-IM system are realized first theoretically and then by computer simulations. Results obtained for the presence of IQI at TxRx$$ {T}_x{R}_x $$ show that a performance evaluation based only on the presence of IQI in the receiver would be optimistic and misleading in terms of the performance of real-life OFDM-IM systems. Most current researches for 5 GB systems assume that transmitters and receivers (transceivers) are perfectly equipped. In this paper, in-phase and quadrature phase imbalance (IQI), which is the one of most HWIs between transmitter and receiver in wireless communication systems, is examined on OFDM-IM system over Rayleigh and Nakagami-m fading channels. Results obtained for the presence of IQI at transceiver show that a performance evaluation based only on the presence of IQI in the receiver would be optimistic and misleading in terms of the performance of real-life OFDM-IM systems. image
dc.description.sponsorshipTrkiye Bilimsel ve Teknolojik Arascedil;timath;rma Kurumu [122E242]; Scientific and Technological Research Council of Turkey (TUBITAK)
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) with research grant: 122E242.
dc.identifier.doi10.1002/dac.5868
dc.identifier.issn1074-5351
dc.identifier.issn1099-1131
dc.identifier.issue14
dc.identifier.scopus2-s2.0-85195508386
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1002/dac.5868
dc.identifier.urihttps://hdl.handle.net/20.500.14440/968
dc.identifier.volume37
dc.identifier.wosWOS:001241014500001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofInternational Journal of Communication Systems
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250201
dc.subjecthardware impairment (HWI)
dc.subjectindex modulation (IM)
dc.subjectin-phase and quadrature phase imbalance (IQI)
dc.subjectlog-likelihood ratio (LLR) detector
dc.subjectmaximum likelihood (ML)
dc.titleError analysis of OFDM-IM systems for beyond 5G: The effect of IQI at transceiver
dc.typeArticle

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