Secrecy Performance of Threshold-Based Decode-and-Forward Cooperative Cognitive Radio Network

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dc.contributor.authorChopra, Khyati
dc.contributor.authorBose, Ranjan
dc.contributor.authorJoshi, Anupam
dc.date.accessioned2018-10-19T13:29:10Z
dc.date.available2018-10-19T13:29:10Z
dc.date.issued2017-02-28
dc.description.abstractThis study evaluates the intercept and outage probability of a decode-and-forward (DF) underlay cognitive radio network. The secondary users are subject to interference limitations from the primary network, with an eavesdropper tapping the second hop of cognitive network, when all the links undergo Rayleigh fading. For this threshold-based system, without assuming that the DF relays can always decode the message correctly, here the authors consider that only a set of relays whose SNR satisfies a predetermined threshold can decode the message successfully. The authors have obtained asymptotic analysis for both cases, when average SNRs of secondary source-relay and relay-destination links are balanced or unbalanced. The authors have shown that the desired secrecy rate, predetermined threshold, eavesdropper channel quality and interference power limitations significantly affects the secrecy performance of the cognitive radio system. They have investigated the outage and intercept probability of relay selection scheme, when either full instantaneous channel state information or statistical channel state information of all the links is available. They have shown that the optimal relay selection improves the performance of the multi-relay cognitive system, when the number of relays is increased.en_US
dc.description.urihttp://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0917en_US
dc.format.extent22 pagesen_US
dc.genrejournal article post-printen_US
dc.identifierdoi:10.13016/M2PG1HS2J
dc.identifier.citationKhyati Chopra, Ranjan Bose, Anupam Joshi, Secrecy Performance of Threshold-Based Decode-and-Forward Cooperative Cognitive Radio Network, IET Communicatoins Volume 11, Issue 9, 22 June 2017, p. 1396 – 1406, DOI: 10.1049/iet-com.2016.0917en_US
dc.identifier.uri10.1049/iet-com.2016.0917
dc.identifier.urihttp://hdl.handle.net/11603/11608
dc.language.isoen_USen_US
dc.publisherIETen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Computer Science and Electrical Engineering Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectrelay networking (telecommunication)en_US
dc.subjectfading channelsen_US
dc.subjectcognitive radioen_US
dc.subjectdecode and forward communicationen_US
dc.subjectradiofrequency interferenceen_US
dc.subjectrayleigh channelsen_US
dc.subjectprobabilityen_US
dc.subjectUMBC Ebiquity Research Groupen_US
dc.titleSecrecy Performance of Threshold-Based Decode-and-Forward Cooperative Cognitive Radio Networken_US
dc.typeTexten_US

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