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dc.contributor.author김동우-
dc.date.accessioned2017-12-08T01:48:42Z-
dc.date.available2017-12-08T01:48:42Z-
dc.date.issued2015-05-
dc.identifier.citationIn: Proceedings of 21st European Wireless Conference, European Wireless 2015, Proceedings of 21st European Wireless Conference, European Wireless 2015en_US
dc.identifier.isbn9783800739769-
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-84979697123&origin=inward&txGid=05d9cf438cb56f2943787e4dd0091d1f-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/34004-
dc.description.abstractIn this paper, we study a cognitive radio (CR) communication system in which multiple antennas assist the secondary user to achieve transmission diversity, while the constraint of zero interference to the primary user is satisfied. In particular, by assuming perfect channel state information between a secondary transmitter (ST) and a primary receiver (PR) at ST, a closed form expression for a opportunistic ing scheme, which guarantees to meet zero interference between ST and PR, is obtained. Further, ns antennas of ST and np antennas of PR provide ns-np diversity order for one primary user. In addition, all primary users use the orthogonal spectrum. Finally, if there are M primary users, we can achieve ∑m=1 M(ns-np m ) diversity order. Numerical results regarding the effects of the number of the primary users, ST's antennas and PR's antennas are provided to evaluate the performances of the proposed scheme. © VDE Verlag GMBH, Berlin, Offenbach, Germany.en_US
dc.language.isoen_USen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.subjectNull-space projectionen_US
dc.subjectOpportunistic ingen_US
dc.subjectSingular value decompositionen_US
dc.subjectChannel state informationen_US
dc.subjectCognitive radioen_US
dc.subjectCommunication channels (information theory)en_US
dc.subjectRadio transmissionen_US
dc.subjectSingular value decompositionen_US
dc.subjectClosed-form expressionen_US
dc.subjectDiversity analysisen_US
dc.subjectNull spaceen_US
dc.subjectNullingen_US
dc.subjectNumerical resultsen_US
dc.subjectPerfect channel state informationen_US
dc.subjectSecondary spectrumsen_US
dc.subjectTransmission diversityen_US
dc.subjectAntennasen_US
dc.titleClosed-form Outage and Diversity Analysis of Opportunistic Nulling for Secondary Spectrum Sharingen_US
dc.typeWorking Paperen_US
dc.relation.page440-444-
dc.contributor.googleauthorJeong, DK-
dc.contributor.googleauthorKim, D-
dc.sector.campusE-
dc.sector.daehakCOLLEGE OF ENGINEERING SCIENCES[E]-
dc.sector.departmentDIVISION OF ELECTRICAL ENGINEERING-
dc.identifier.piddkim-
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COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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