Sensing Task Allocation for Heterogeneous Channels in Cooperative Spectrum Sensing

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dc.contributor.authorWu, Qihui
dc.contributor.authorHan, Han
dc.contributor.authorWang, Jinlong
dc.contributor.authorZhao, Zhitao
dc.contributor.authorZhang, Ze
dc.coverage.issue4cs
dc.coverage.volume19cs
dc.date.accessioned2016-03-11T09:20:18Z
dc.date.available2016-03-11T09:20:18Z
dc.date.issued2010-12cs
dc.description.abstractIn the traditional centralized cooperative spectrum sensing, all secondary users sense the same channel. But, for a given channel, there exists detection performance diversity among all the users, due to the different signal-fading process. Involving the user with poor performance in cooperative sensing will not only deteriorate the detection correctness but also waste the sensing time. In the heterogeneous channels, the problem is even severe. A novel idea is to allocate the secondary users to sense different channels. We analyze the allocation problem before formulate it to be an optimization problem, which is a NP-hard problem. Then we propose the declined complexity algorithm in equal secondary user case and the two-hierarchy approach algorithm in unequal case. With the simulation, we verify the near optimality of the proposed algorithms and the advantage of the task allocation.en
dc.formattextcs
dc.format.extent544-551cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2010, vol. 19, č. 4, s. 544-551. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57032
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2010/10_04_544_551.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectCognitive radioen
dc.subjectspectrum sensingen
dc.subjectsensing task allocationen
dc.titleSensing Task Allocation for Heterogeneous Channels in Cooperative Spectrum Sensingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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