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dc.contributor.authorRezki, Zouheir*
dc.contributor.authorAlouini, Mohamed-Slim*
dc.date.accessioned2012-09-08T11:22:28Z
dc.date.available2012-09-08T11:22:28Z
dc.date.issued2012-09-08en
dc.identifier.citationRezki Z, Alouini M (2012) Ergodic Capacity of Cognitive Radio Under Imperfect Channel-State Information. IEEE Trans Veh Technol 61: 2108-2119. doi:10.1109/TVT.2012.2195042.en
dc.identifier.issn0018-9545en
dc.identifier.issn1939-9359en
dc.identifier.doi10.1109/TVT.2012.2195042en
dc.identifier.urihttp://hdl.handle.net/10754/241992en
dc.description.abstractA spectrum-sharing communication system where the secondary user is aware of the instantaneous channel-state information (CSI) of the secondary link but knows only the statistics and an estimated version of the secondary transmitter-primary receiver link is investigated. The optimum power profile and the ergodic capacity of the secondary link are derived for general fading channels [with a continuous probability density function (pdf)] under the average and peak transmit power constraints and with respect to the following two different interference constraints: 1) an interference outage constraint and 2) a signal-to-interference outage constraint. When applied to Rayleigh fading channels, our results show, for example, that the interference constraint is harmful at the high-power regime, because the capacity does not increase with the power, whereas at the low-power regime, it has a marginal impact and no-interference performance, which corresponds to the ergodic capacity under average or peak transmit power constraint in the absence of the primary user, may be achieved. © 2012 IEEE.en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6185693en
dc.rightsArchived with thanks to IEEE Transactions on Vehicular Technologyen
dc.subjectCognitive radioen
dc.subjectspectrum sharingen
dc.subjectoptimal power allocationen
dc.subjectergodic capacityen
dc.subjectinterference outage constrainten
dc.titleErgodic Capacity of Cognitive Radio Under Imperfect Channel-State Informationen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division*
dc.contributor.departmentCommunication Theory Lab*
dc.identifier.journalIEEE Transactions on Vehicular Technologyen
dc.contributor.institutionKing Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Eastern Province, Saudi Arabia*
dc.contributor.institutionCarleton University, Ottawa, ON, Canada*
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)*
kaust.personRezki, Zouheir*
kaust.personAlouini, Mohamed-Slim*
refterms.dateFOA2018-06-13T13:45:56Z


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