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AuthorSedighi, Saeid
AuthorTaherpour, Abbas
AuthorSala-Alvarez, Josep
AuthorKhattab, Tamer
Available date2022-11-01T09:01:32Z
Publication Date2015
Publication NameIEEE Transactions on Signal Processing
ResourceScopus
Resource2-s2.0-84933074425
URIhttp://dx.doi.org/10.1109/TSP.2015.2434330
URIhttp://hdl.handle.net/10576/35689
AbstractWe consider the problem of multiantenna spectrum sensing (SS) in cognitive radios (CRs) when the receivers are assumed to be uncalibrated across the antennas. The performance of the Hadamard Ratio Detector (HRD) is analyzed in such a scenario. Specifically, we first derive the exact distribution of the HRD statistic under the null hypothesis, which leads to an elaborate but closed-form expression for the false-Alarm probability. Then, we derive a simpler and tight closed-form approximation for both the false-Alarm and detection probabilities by using a moment-based approximation of the HRD statistical distribution under both hypotheses. Finally, the accuracy of the obtained results is verified by simulations. 1991-2012 IEEE.
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectCognitive radio
generalized likelihood ratio test (GLRT)
multiple antennas
performance evaluation
spectrum sensing
uncalibrated receivers
TitleOn the Performance of Hadamard Ratio Detector-Based Spectrum Sensing for Cognitive Radios
TypeArticle
Pagination3809-3824
Issue Number14
Volume Number63
dc.accessType Abstract Only


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