On the Statistics of Cognitive Radio Capacity in Shadowing and Fast Fading Environments

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dc.contributor.authorHanif, M.F.
dc.contributor.authorSmith, P.
dc.contributor.authorShafi, M.
dc.date.accessioned2010-01-12T22:35:17Z
dc.date.available2010-01-12T22:35:17Z
dc.date.issued2009en
dc.description.abstractIn this paper we consider the capacity of the cognitive radio (CR) channel in a fading environment under a “low interference regime”. This capacity depends critically on a power loss parameter, alpha, which governs how much transmit power the CR dedicates to relaying the primary message. We derive a simple, accurate approximation to alpha which gives considerable insight into system capacity. We also investigate the effects of system parameters and propagation environment on alpha and the CR capacity. In all cases, the use of the approximation is shown to be extremely accurate. Finally, we derive the probability that the “low interference regime” holds and demonstrate that this is the dominant case, especially in practical CR deployment scenarios.en
dc.identifier.citationHanif, M.F., Smith, P., Shafi, M. (2009) On the Statistics of Cognitive Radio Capacity in Shadowing and Fast Fading Environments. Hanover, Germany: 4th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CrownCom 2009), 22-24 Jun 2009.en
dc.identifier.doihttps://doi.org/10.1109/CROWNCOM.2009.5189035
dc.identifier.urihttp://hdl.handle.net/10092/3364
dc.language.isoen
dc.publisherUniversity of Canterbury. Electrical and Computer Engineeringen
dc.publisherUniversity of Canterbury. Mathematics and Statisticsen
dc.rights©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en
dc.rights.urihttps://hdl.handle.net/10092/17651en
dc.subjectcognitive radioen
dc.subjectapproximation theoryen
dc.subjectelectromagnetic wave interferenceen
dc.subjectfading channels probabilityen
dc.subject.marsdenFields of Research::290000 Engineering and Technology::291700 Communications Technologies::291710 Radio communications and broadcasting not elsewhere classifieden
dc.titleOn the Statistics of Cognitive Radio Capacity in Shadowing and Fast Fading Environmentsen
dc.typeConference Contributions - Published
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