Show simple item record

dc.contributor.authorBakım, Sezi İsmailtr_TR
dc.contributor.authorKaya, Onurtr_TR
dc.date.accessioned2015-07-14T23:46:50Z
dc.date.available2015-07-14T23:46:50Z
dc.date.issued2011
dc.identifier.citationBakim, S., & Kaya, O. (2011). Optimum power control for transmitter cooperation in OFDMA based wireless networks. Paper presented at the 464-469. doi:10.1109/GLOCOMW.2011.6162493en_US
dc.identifier.isbn9781467300391
dc.identifier.isbn9781467300384
dc.identifier.isbn9781467300407
dc.identifier.otherWOS:000304097200087
dc.identifier.urihttp://hdl.handle.net/11729/616
dc.identifier.urihttp://dx.doi.org/10.1109/GLOCOMW.2011.6162493
dc.description.abstractFor a cooperative orthogonal frequency division multiple access (OFDMA) system with two transmitters (TXs), and full channel state information (CSI), we obtain the optimal power allocation (PA) policies which maximize the rate region achievable by a recently introduced version of block Markov superposition encoding (BMSE): inter-subchannel cooperative encoding (ISCE) [1]. We provide the optimality conditions that need to be satisfied by the powers associated with the transmitted codewords. We propose two algorithms that yield the optimal power distribution: a subgradient algorithm which achieves an arbitrary rate point on the achievable rate region boundary, and an iterative waterfilling-like algorithm which maximizes the sum rate, and converges much faster. We observe that, utilization of power control to take advantage of the diversity offered by the cooperative OFDMA system, not only leads to a remarkable improvement in achievable rates, but also may help determine how the subchannels have to be instantaneously allocated to various tasks in cooperation.en_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.relation.isversionof10.1109/GLOCOMW.2011.6162493
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.sourceIEEE GLOBECOM Workshops (GC Wkshps)en_US
dc.subjectResource-allocationen_US
dc.subjectFading channelsen_US
dc.subjectUplinken_US
dc.subjectSubcarrieren_US
dc.subjectSystemsen_US
dc.subjectDecodingen_US
dc.subjectEncodingen_US
dc.subjectFadingen_US
dc.subjectIterative methodsen_US
dc.subjectResource managementen_US
dc.subjectTransmittersen_US
dc.subjectVectorsen_US
dc.subjectBlock Markov superposition encodingen_US
dc.subjectCooperative OFDMA systemen_US
dc.subjectCooperative orthogonal frequency division multiple access systemen_US
dc.subjectFull channel state informationen_US
dc.subjectInter-subchannel cooperative encodingen_US
dc.subjectIterative waterfilling-like algorithmen_US
dc.subjectOptimal power allocation policyen_US
dc.subjectOptimal power distributionen_US
dc.subjectOptimum power controlen_US
dc.subjectRate region boundaryen_US
dc.subjectSubgradient algorithmen_US
dc.subjectTransmitter cooperationen_US
dc.subjectWireless networksen_US
dc.subjectMarkov processesen_US
dc.subjectOFDM modulationen_US
dc.subjectBlock codesen_US
dc.subjectChannel codingen_US
dc.subjectCooperative communicationen_US
dc.subjectFrequency division multiple accessen_US
dc.subjectOptimal controlen_US
dc.subjectPower controlen_US
dc.subjectRadio networksen_US
dc.subjectRadio transmittersen_US
dc.subjectTelecommunication controlen_US
dc.titleOptimum Power Control for Transmitter Cooperation in OFDMA Based Wireless Networksen_US
dc.typeconferenceObjecten_US
dc.description.versionPublisher's Versionen_US
dc.contributor.departmentIşık Üniversitesi, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümütr_TR
dc.contributor.departmentIsik University, Faculty of Engineering, Department of Electrical-Electronics Engineeringen_US
dc.contributor.authorIDTR37564
dc.identifier.startpage464
dc.identifier.endpage469
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record