Random access over wireless links: optimal rate and activity probability selection

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dc.citation.epage6en_US
dc.citation.spage1en_US
dc.contributor.authorDuman, Tolga M.en_US
dc.contributor.authorKarakoƧ, N.en_US
dc.coverage.spatialSingapore, Singapore
dc.date.accessioned2019-02-21T16:04:21Z
dc.date.available2019-02-21T16:04:21Z
dc.date.issued2017-12en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionDate of Conference: 4-8 Dec. 2017
dc.descriptionConference name: GLOBECOM 2017 - IEEE Global Communications Conference, 2017
dc.description.abstractIn this paper, we consider a random access scheme over wireless fading channels based on slotted ALOHA where each user independently decides whether to send a packet or not to a common receiver at any given time slot. To characterize the system throughput, i.e., the expected sum- rate, an information theoretic formulation is developed. We consider two scenarios: classical slotted ALOHA where no multi-user detection (MUD) capability is available and slotted ALOHA with MUD. Our main contribution is that the optimal rates and channel activity probabilities can be characterized as a function of the user distances to the receiver to maximize the system throughput. In addition, we address the issue of fairness among the users and provide solutions, which guarantee a minimum amount of individual throughput.
dc.description.provenanceMade available in DSpace on 2019-02-21T16:04:21Z (GMT). No. of bitstreams: 1 Bilkent-research-paper.pdf: 222869 bytes, checksum: 842af2b9bd649e7f548593affdbafbb3 (MD5) Previous issue date: 2018en
dc.description.sponsorshipThis work was performed while Nurullah Karakoc was an M.S. student at Bilkent University, Ankara, Turkey. His M.S. studies were supported by the TUBITAK BIDEB 2210-E program.
dc.identifier.doi10.1109/GLOCOM.2017.8254951
dc.identifier.urihttp://hdl.handle.net/11693/50180
dc.language.isoEnglish
dc.publisherIEEE
dc.relation.isversionofhttps://doi.org/10.1109/GLOCOM.2017.8254951
dc.relation.projectBilkent Ɯniversitesi - BIDEB 2210-E
dc.source.title2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedingsen_US
dc.subjectThroughput
dc.subjectReceivers
dc.subjectWireless communication
dc.subjectEncoding
dc.subjectRayleigh channels
dc.subjectMultiuser detection
dc.titleRandom access over wireless links: optimal rate and activity probability selectionen_US
dc.typeConference Paperen_US

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