A New Protocol for Cooperative Spectrum Sharing in Mobile Cognitive Radio Networks

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dc.contributor.authorHosseini, Seyed Alireza
dc.contributor.authorAbolhassani, Bahman
dc.contributor.authorSadough, Seyed Mohammad Sajad
dc.coverage.issue3cs
dc.coverage.volume24cs
dc.date.accessioned2015-10-26T08:05:45Z
dc.date.available2015-10-26T08:05:45Z
dc.date.issued2015-09cs
dc.description.abstractTo optimize the usage of limited spectrum resources, cognitive radio (CR) can be used as a viable solution. The main contribution of this article is to propose a new protocol to increase throughput of mobile cooperative CR networks (CRNs). The key challenge in a CRN is how the nodes cooperate to access the channel in order to maximize the CRN's throughput. To minimize unnecessary blocking of CR transmission, we propose a so-called new frequency-range MAC protocol (NFRMAC). The proposed method is in fact a novel channel assignment mechanism that exploits the dependence between signal's attenuation model, signal's frequency, communication range, and interference level. Compared .to the conventional methods, the proposed algorithm considers a more realistic model for the mobility pattern of CR nodes and also adaptively selects the maximal transmission range of each node over which reliable transmission is possible. Simulation results indicate that using NFRMAC leads to an increase of the total CRN's throughput by 6% and reduces the blocking rate by 10% compared to those of conventional methods.en
dc.formattextcs
dc.format.extent757-764cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 3, s. 757-764. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0757en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/51742
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_03_0757_0764.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectBlocking rateen
dc.subjectcognitive radioen
dc.subjectcooperative spectrum sharingen
dc.subjectsecondary usersen
dc.subjectspectrum sharingen
dc.titleA New Protocol for Cooperative Spectrum Sharing in Mobile Cognitive Radio Networksen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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