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dc.contributor.authorYılmaz, Burak Alptug
dc.contributor.authorErküçük, Serhat
dc.date.accessioned2019-06-28T11:11:07Z
dc.date.available2019-06-28T11:11:07Z
dc.date.issued2012
dc.identifier.isbn9781905824304
dc.identifier.urihttps://hdl.handle.net/20.500.12469/1462
dc.identifier.urihttps://ieeexplore.ieee.org/document/6294205
dc.description.abstractRecent studies in cognitive radios consider the detection of multiple bands for a better utilization of the spectrum. If the cognitive radio (CR) is an ultra wideband (UWB) or a wideband system then the CR should ensure all the coexisting primary systems in these bands are detected before the CR can start data transmission. In this work we study the primary system detection performance of a wideband CR assuming that there are multiple coexisting primary systems and that these primary systems may be jointly active. Accordingly we consider the implementation of (i) a maximum a posteriori (MAP) based detection (i.e. joint detection) that takes into account the statistics of simultaneously operating systems in independent bands and (ii) a Neyman-Pearson (NP) test based detection that optimizes the threshold values independently in each band (i.e. independent detection). In addition to obtaining the probabilities of false alarm and detection expressions for these two methods we use the threshold values obtained from joint detection so as to achieve the optimum NP test based independent detection results with a simpler implementation. We also provide the performance comparison of joint and independent detection for various practical scenarios when there are multiple active primary systems. © 2012 IIMC Ltd.
dc.language.isoEnglish
dc.publisherIEEE
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCognitive radios
dc.subjectDetect-and-avoid
dc.subjectJoint detection
dc.subjectUltra wideband (UWB) systems
dc.subjectWideband spectrum sensing
dc.titleDetection of jointly active primary systems
dc.typeConference Paper
dc.relation.journal2012 Future Network & Mobile Summit (FutureNetw)
dc.contributor.khasauthorErküçük, Serhat


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