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dc.contributor.authorHamza, Doha R.
dc.contributor.authorAïssa, Sonia
dc.date.accessioned2015-08-03T11:02:30Z
dc.date.available2015-08-03T11:02:30Z
dc.date.issued2013-04
dc.identifier.issn21622337
dc.identifier.doi10.1109/WCL.2012.121812.120809
dc.identifier.urihttp://hdl.handle.net/10754/562709
dc.description.abstractA secondary user (SU) seeks to transmit by sequentially sensing statistically independent primary user (PU) channels. If a channel is sensed free, it is probed to estimate the signal-to-noise ratio between the SU transmitter-receiver pair over the channel. We jointly optimize the channel sensing time, the sensing decision threshold, the channel probing time, together with the channel sensing order under imperfect synchronization between the PU and the SU. The sensing and probing times and the decision threshold are assumed to be the same for all channels. We maximize a utility function related to the SU throughput under the constraint that the collision probability with the PU is kept below a certain value and taking sensing errors into account. We illustrate the optimal policy and the variation of SU throughput with various system parameters. © 2012 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectchannel probing
dc.subjectCognitive radio
dc.subjectwideband sensing
dc.titleWideband spectrum sensing order for cognitive radios with sensing errors and channel SNR probing uncertainty
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalIEEE Wireless Communications Letters
dc.contributor.institutionNational Institute of Scientific Research-Energy, Materials, and Telecommunications (INRS-EMT), University of Quebec, Montreal, QC, Canada
kaust.personHamza, Doha R.


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