Optimal channel switching and randomization over flat-fading channels for outage capacity maximization

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buir.contributor.authorSaad, Masrur
buir.contributor.authorGezici, Sinan
buir.contributor.orcidMasrur, Saad|0000-0001-9741-0644
buir.contributor.orcidGezici, Sinan|0000-0002-6369-3081
dc.citation.epage634en_US
dc.citation.issueNumber2en_US
dc.citation.spage630en_US
dc.citation.volumeNumber27en_US
dc.contributor.authorMasrur, Saad
dc.contributor.authorGezici, Sinan
dc.date.accessioned2023-02-28T10:55:23Z
dc.date.available2023-02-28T10:55:23Z
dc.date.issued2022-11-16
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractIn this letter, the optimal channel switching and randomization problem is formulated and its solution is characterized for flat-fading Gaussian noise channels with the aim of outage capacity maximization under average power and outage probability constraints. For the single user scenario, it is proved that the optimal solution can always be realized by performing one of the following strategies: (1) Transmission over a single channel with no randomization. (2) Channel switching between two channels with no randomization. (3) Randomization between two parameter sets over a single channel. Hence, the solution can easily be obtained by considering only these three strategies. However, for the multiuser scenario, obtaining the optimal solution can have very high computational complexity. Therefore, an algorithm is proposed to calculate an approximately optimal channel switching and randomization solution (with adjustable approximation accuracy) based on the solution of a linearly constrained linear optimization problem.en_US
dc.description.provenanceSubmitted by Ayça Nur Sezen (ayca.sezen@bilkent.edu.tr) on 2023-02-28T10:55:23Z No. of bitstreams: 1 Optimal_channel_switching_and_randomization_over_flat-fading_channels_for_outage_capacity_maximization.pdf: 384819 bytes, checksum: 2b14c44193f68602482b719a0779ab9c (MD5)en
dc.description.provenanceMade available in DSpace on 2023-02-28T10:55:23Z (GMT). No. of bitstreams: 1 Optimal_channel_switching_and_randomization_over_flat-fading_channels_for_outage_capacity_maximization.pdf: 384819 bytes, checksum: 2b14c44193f68602482b719a0779ab9c (MD5) Previous issue date: 2022-11-16en
dc.identifier.doi10.1109/LCOMM.2022.3222465en_US
dc.identifier.eissn1558-2558
dc.identifier.issn1089-7798
dc.identifier.urihttp://hdl.handle.net/11693/111913
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.relation.isversionofhttps://doi.org/10.1109/LCOMM.2022.3222465en_US
dc.source.titleIEEE Communications Lettersen_US
dc.subjectChannel switchingen_US
dc.subjectOutage capacityen_US
dc.subjectTimesharingen_US
dc.subjectPower allocationen_US
dc.subjectFlat-fading channelen_US
dc.titleOptimal channel switching and randomization over flat-fading channels for outage capacity maximizationen_US
dc.typeArticleen_US

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