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dc.contributor.authorKeslassy, Isaac
dc.contributor.authorJohnston, Matthew Ryan
dc.contributor.authorModiano, Eytan H
dc.date.accessioned2018-06-22T16:41:44Z
dc.date.available2018-06-22T16:41:44Z
dc.date.issued2013-10
dc.date.submitted2013-01
dc.identifier.isbn978-1-4799-0446-4
dc.identifier.issn2157-8117
dc.identifier.issn2157-8095
dc.identifier.urihttp://hdl.handle.net/1721.1/116524
dc.description.abstractWe consider a multi-channel communication system in which a transmitter has access to a large number of channels, but does not know the state of these channels. We model channel state using an ON/OFF Markovian model, and allow the transmitter to probe one of the channels at predetermined probing intervals to decide over which channel to transmit. For models in which the transmitter must send over the probed channel, it has been shown that a myopic policy that probes the channel most likely to be ON is optimal. In this work, we allow the transmitter to select a channel over which to transmit that is not necessarily the one it probed. We show that the myopic policy is not optimal, and propose a simple alternative probing policy, which achieves a higher per-slot expected throughput. Finally, we consider the case where there is a fixed cost associated with probing and derive optimal probing intervals.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant CNS1217048)en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (CNS-0915988)en_US
dc.description.sponsorshipUnited States. Army Research Office. Multidisciplinary University Research Initiative (Grant W911NF-08-1-0238)en_US
dc.language.isoen_US
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/ISIT.2013.6620563en_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceProf. Modianoen_US
dc.titleChannel probing in communication systems: Myopic policies are not always optimalen_US
dc.typeArticleen_US
dc.identifier.citationJohnston, Matthew, Eytan Modiano, and Isaac Keslassy. “Channel Probing in Communication Systems: Myopic Policies Are Not Always Optimal.” 2013 IEEE International Symposium on Information Theory (July 2013), Istanbul, Turkey,Institute of Electrical and Electronics Engineers (IEEE), 2013.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Aeronautics and Astronauticsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Information and Decision Systemsen_US
dc.contributor.mitauthorJohnston, Matthew Ryan
dc.contributor.mitauthorModiano, Eytan H
dc.relation.journal2013 IEEE International Symposium on Information Theory (ISIT)en_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsJohnston, Matthew; Modiano, Eytan; Keslassy, Isaacen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-8238-8130
mit.licenseOPEN_ACCESS_POLICYen_US


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