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dc.contributor.authorYang, Yuli*
dc.contributor.authorAïssa, Sonia*
dc.date.accessioned2015-08-03T09:58:36Zen
dc.date.available2015-08-03T09:58:36Zen
dc.date.issued2012-08en
dc.identifier.issn21622337en
dc.identifier.doi10.1109/WCL.2012.042512.120198en
dc.identifier.urihttp://hdl.handle.net/10754/562265en
dc.description.abstractIn this work, we propose a transmission strategy for secondary users (SUs) within a cognitive radio network where primary users (PUs) exploit variable-rate variable-power modulation. By monitoring the PU's transmissions, the SU adjusts its transmit power based on the gap between the PU's received effective signal-to-noise power ratio (SNR) and the lower SNR boundary for the modulation mode that is being used in the primary link. Thus, at the SU's presence, the PU's quality of service (QoS) is guaranteed without increasing its processing complexity thanks to no interference cancellation required in the PU's operation. To demonstrate the advantage of our proposed transmission strategy, we analyze the secondary user's achievable data rate by taking into account different transmission capabilities for the secondary transmitter. The corresponding numerical results not only prove the validity of our derivations but also provide a convenient tool for the network design with the proposed transmission strategy. © 2012 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectadaptive modulationen
dc.subjectCognitive radio (CR)en
dc.subjectdata rateen
dc.subjectspectrum sharingen
dc.titleAchievable data rate in spectrum-sharing channels with variable-rate variable-power primary usersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division*
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division*
dc.identifier.journalIEEE Wireless Communications Lettersen
dc.contributor.institutionInstitut National de la Recherche Scientifique (INRS), University of Quebec, Montreal, QC, Canada*
kaust.authorYang, Yuli*


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