Maximization of average number of correctly received symbols over multiple channels in the presence of idle periods

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dc.contributor.authorKeskin, Musa Furkan
dc.contributor.authorKurt, Mehmet Necip
dc.contributor.authorTutay, Mehmet Emin
dc.contributor.authorGezici, Sinan
dc.contributor.authorArikan, Orhan
dc.date.accessioned2024-04-24T16:11:17Z
dc.date.available2024-04-24T16:11:17Z
dc.date.issued2016
dc.departmentDicle Üniversitesien_US
dc.description.abstractIn this study, optimal channel switching (time sharing) strategies are investigated under average power and cost constraints for maximizing the average number of correctly received symbols between a transmitter and a receiver that are connected via multiple flat-fading channels with additive Gaussian noise. The optimal strategy is shown to correspond to channel switching either among at most three different channels with full channel utilization (i.e., no idle periods), or between at most two different channels with partial channel utilization. Also, it is stated that the optimal solution must operate at the maximum average power and the maximum average cost, which facilitates low-complexity approaches for obtaining the optimal strategy. For two-channel strategies, an upper bound is derived, in terms of the parameters of the employed channels, on the ratio between the optimal power levels. In addition, theoretical results are derived for characterizing the optimal solution for channel switching between two channels, and for comparing performance of single channel strategies. Sufficient conditions that depend solely on the systems parameters are obtained for specifying when partial channel utilization cannot be optimal. Furthermore, the proposed optimal channel switching problem is investigated for logarithmic cost functions, and various theoretical results are obtained related to the optimal strategy. Numerical examples are presented to illustrate the validity of the theoretical results. (C) 2016 Elsevier Inc. All rights reserved.en_US
dc.description.sponsorshipDistinguished Young Scientist Award of Turkish Academy of Sciences (TUBA-GEBIP)en_US
dc.description.sponsorshipThis research was supported in part by the Distinguished Young Scientist Award of Turkish Academy of Sciences (TUBA-GEBIP 2013). Part of this work was presented at IEEE Wireless Communications and Networking Conference (WCNC) 2016.en_US
dc.identifier.doi10.1016/j.dsp.2016.03.009
dc.identifier.endpage118en_US
dc.identifier.issn1051-2004
dc.identifier.issn1095-4333
dc.identifier.scopus2-s2.0-84964322199en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage95en_US
dc.identifier.urihttps://doi.org/10.1016/j.dsp.2016.03.009
dc.identifier.urihttps://hdl.handle.net/11468/15339
dc.identifier.volume54en_US
dc.identifier.wosWOS:000376707200010en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherAcademic Press Inc Elsevier Scienceen_US
dc.relation.ispartofDigital Signal Processingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChannel Switchingen_US
dc.subjectGaussian Channelen_US
dc.subjectFadingen_US
dc.subjectProbability Of Correct Decisionen_US
dc.subjectPartial Transmissionen_US
dc.subjectLogarithmic Costen_US
dc.titleMaximization of average number of correctly received symbols over multiple channels in the presence of idle periodsen_US
dc.typeArticleen_US

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