The Curse of Beam-Squint in ISAC: Causes, Implications, and Mitigation Strategies

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dc.authoridEltawil, Ahmed/0000-0003-1849-083X
dc.contributor.authorElbir, Ahmet M.
dc.contributor.authorMishra, Kumar Vijay
dc.contributor.authorCelik, Abdulkadir
dc.contributor.authorEltawil, Ahmed M.
dc.date.accessioned2025-10-11T20:48:14Z
dc.date.available2025-10-11T20:48:14Z
dc.date.issued2024
dc.departmentDüzce Üniversitesien_US
dc.description.abstractIntegrated sensing and communications (ISAC) has emerged as a means to efficiently utilize spectrum and thereby save cost and power. At the higher end of the spectrum, ISAC systems operate at wideband using large antenna arrays to meet the stringent demands for high-resolution sensing and enhanced communications capacity. However, the wideband implementation entails beam-squint, that is, deviations in the generated beam directions because of the narrowband assumption in the analog components. This causes significant degradation in the communications capacity, target detection, and parameter estimation. This article presents the design challenges caused by beam-squint and its mitigation in ISAC systems. In this context, we also discuss several ISAC design perspectives, including far-/near-field beamforming, channel/direction estimation, sparse array design, and index modulation. There are also several research opportunities in waveform design, beam training, and array processing to adequately address beam-squint in ISAC.en_US
dc.identifier.doi10.1109/MCOM.001.2300657
dc.identifier.endpage58en_US
dc.identifier.issn0163-6804
dc.identifier.issn1558-1896
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-85203556970en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage52en_US
dc.identifier.urihttps://doi.org/10.1109/MCOM.001.2300657
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21822
dc.identifier.volume62en_US
dc.identifier.wosWOS:001315180100007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIeee-Inst Electrical Electronics Engineers Incen_US
dc.relation.ispartofIeee Communications Magazineen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectTrainingen_US
dc.subjectParameter estimationen_US
dc.subjectPrevention and mitigationen_US
dc.subjectModulationen_US
dc.subjectObject detectionen_US
dc.subjectIntegrated sensing and communicationen_US
dc.subjectIndexesen_US
dc.subjectRadio spectrum managementen_US
dc.titleThe Curse of Beam-Squint in ISAC: Causes, Implications, and Mitigation Strategiesen_US
dc.typeArticleen_US

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