Rate selection for wireless random access networks over block fading channels

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buir.contributor.authorKarakoç, Nurullah
buir.contributor.authorDuman, Tolga M.
dc.citation.epage1616en_US
dc.citation.issueNumber3en_US
dc.citation.spage1604en_US
dc.citation.volumeNumber68en_US
dc.contributor.authorKarakoç, Nurullah
dc.contributor.authorDuman, Tolga M.
dc.date.accessioned2021-02-18T09:19:17Z
dc.date.available2021-02-18T09:19:17Z
dc.date.issued2020
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractWe study uncoordinated random access over fading channels where each user independently decides whether to send a packet or not to a common receiver at any given time slot. Specifically, we develop an information theoretic formulation to characterize the overall system throughput. We consider two scenarios: classical slotted ALOHA, where no multiuser detection (MUD) capability is available and slotted ALOHA with MUD. In each case, in order to maximize the system throughput, we provide methods to obtain the optimal rates and channel activity probabilities using the user distances to the receiver (or, equivalently, their average signal to noise ratios) assuming a Rayleigh block fading channel. The results demonstrate that the newly proposed optimal rate selection solutions offer significant increase in the expected system throughputs compared to the “same rate to all users” approach commonly used in the literature. In addition to the overall throughput optimization, we also address the issue of fairness among users and propose approaches guaranteeing a minimum amount of individual throughput to each user, and design systems with limited individual outage probabilities for increased energy efficiency and reduced delay.en_US
dc.description.provenanceSubmitted by Onur Emek (onur.emek@bilkent.edu.tr) on 2021-02-18T09:19:17Z No. of bitstreams: 1 Rate_Selection_for_Wireless_Random_Access_Networks_Over_Block_Fading_Channels.pdf: 1466177 bytes, checksum: ca20b7491e3a39470dd9183a62bb3ca3 (MD5)en
dc.description.provenanceMade available in DSpace on 2021-02-18T09:19:17Z (GMT). No. of bitstreams: 1 Rate_Selection_for_Wireless_Random_Access_Networks_Over_Block_Fading_Channels.pdf: 1466177 bytes, checksum: ca20b7491e3a39470dd9183a62bb3ca3 (MD5) Previous issue date: 2020en
dc.identifier.doi10.1109/TCOMM.2019.2962799en_US
dc.identifier.issn0090-6778
dc.identifier.urihttp://hdl.handle.net/11693/75439
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttps://dx.doi.org/10.1109/TCOMM.2019.2962799en_US
dc.source.titleIEEE Transactions on Communicationsen_US
dc.subjectSlotted ALOHAen_US
dc.subjectRayleigh fadingen_US
dc.subjectRate selectionen_US
dc.subjectMulti-user communicationsen_US
dc.titleRate selection for wireless random access networks over block fading channelsen_US
dc.typeArticleen_US

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