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Distributed cognitive multiple access networks: power control, scheduling and multiuser diversity

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dc.contributor.authorNekouei, E.
dc.contributor.authorInaltekin, H.
dc.contributor.authorDey, S.
dc.contributor.conference2013 IEEE International Symposium on Information Theory (7 Jul 2013 - 12 Jul 2013 : Istanbul, Turkey)
dc.date.issued2013
dc.descriptionLink to a related website: http://arxiv.org/pdf/1304.3865.pdf, Open Access via Unpaywall
dc.description.abstractThis paper studies optimal distributed power allocation and scheduling policies (DPASPs) for distributed total power and interference limited (DTPIL) cognitive multiple access networks in which secondary users (SU) independently perform power allocation and scheduling tasks using their local knowledge of secondary transmitter secondary base-station (STSB) and secondary transmitter primary base-station (STPB) channel gains. In such networks, transmission powers of SUs are limited by an average total transmission power constraint and by a constraint on the average interference power that SUs cause to the primary base-station. We first establish the joint optimality of water-filling power allocation and threshold-based scheduling policies for DTPIL networks. We then show that the secondary network throughput under the optimal DPASP scales according to 1/enh log log (N), where nh is a parameter obtained from the distribution of STSB channel power gains and N is the total number of SUs. From a practical point of view, our results signify the fact that distributed cognitive multiple access networks are capable of harvesting multiuser diversity gains without employing centralized schedulers and feedback links as well as without disrupting primary's quality-of-service (QoS).
dc.identifier.citationIEEE International Symposium on Information Theory - Proceedings, 2013, vol.2013, iss.article no. 6620510, pp.1665-1669
dc.identifier.doi10.1109/ISIT.2013.6620510
dc.identifier.isbn9781479904464
dc.identifier.urihttps://hdl.handle.net/11541.2/126408
dc.language.isoen
dc.publisherIEEE
dc.publisher.placeUS
dc.relation.fundingScientific and Technological Research Council of Turkey 112E024
dc.relation.fundingEuropean Commission Research Executive Agency Marie Curie FP7-Reintegration PCIG10-GA-2011-303713
dc.rightsCopyright 2013 IEEE
dc.source.urihttps://doi.org/10.1109/ISIT.2013.6620510
dc.subjectthroughput
dc.subjectresource management
dc.subjectinterference
dc.subjectfading
dc.subjectcognitive radio
dc.subjecteducational institutions
dc.subjectscattering
dc.titleDistributed cognitive multiple access networks: power control, scheduling and multiuser diversity
dc.typeConference paper
pubs.publication-statusPublished
ror.mmsid9916130007101831

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