Reference : On the Performance of Hadamard Ratio Detector-based Spectrum Sensing for Cognitive Radios
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/47608
On the Performance of Hadamard Ratio Detector-based Spectrum Sensing for Cognitive Radios
English
Sedighi, Saeid mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom >]
Taherpour, Abbas []
Sala, Josep []
Khattab, Tamer []
2015
IEEE Transactions on Signal Processing
Institute of Electrical and Electronics Engineers
63
14
3809–3824
Yes
International
1053-587X
United States
[en] Cognitive radio ; spectrum sensing ; generalized likelihood ratio test (GLRT)
[en] —We 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.
http://hdl.handle.net/10993/47608
10.1109/TSP.2015.2434330

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