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  • Correlated multiple antennas spectrum sensing under calibration uncertainty 

    Pourgharehkhan, Zahra; Taherpour, Abbas; Sala Álvarez, José; Khattab, Tamer (2015-12-01)
    Article
    Open Access
    We address the problem of spectrum sensing in cognitive radios (CRs) when the secondary user (SU) is equipped with a multiantenna receiver. We consider scenarios with correlation between the received channels at different ...
  • On the performance of Hadamard ratio detector-based spectrum sensing for cognitive radios 

    Sedighi, Saeid; Taherpour, Abbas; Sala Álvarez, José; Khattab, Tamer (2015-07-15)
    Article
    Open Access
    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 ...