Browsing by Author "Pourgharehkhan, Zahra"

Now showing items 1-6 of 6

    • Correlated Multiple Antennas Spectrum Sensing under Calibration Uncertainty 

      Pourgharehkhan, Zahra; Taherpour, Abbas; Sala-Alvarez, Josep; Khattab, Tamer ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)
      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 ...

    • Distributed spectrum sensing of correlated observations in cognitive radio networks 

      Sedighi, Saeid; Pourgharehkhan, Zahra; Taherpour, Abbas; Khattab, Tamer (2013 , Conference Paper)
      In this paper, Collaborative Spectrum Sensing (CSS) as one of the most efficient sensing approaches in Cognitive Radio Networks (CRNs) is investigated when the Secondary Users (SUs) observations are assumed to be correlated. ...

    • Efficient collaborative spectrum sensing under the smart primary user emulation attacker network 

      Pourgharehkhan, Zahra; Taherpour, Abbas; Khattab, Tamer; Hamila, Ridha ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      In this paper, collaborative spectrum sensing to detect random signals corrupted by Gaussian noise in the presence of Primary User Emulation Attackers (PUEAs) is studied. We consider smart PUEAs which aims at increasing ...

    • Optimal collaborative energy harvesting spectrum sensing with limited time resource 

      Mohammadian, Fariba; Pourgharehkhan, Zahra; Taherpour, Abbas; Khattab, Tamer ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      We study a collaborative spectrum sensing (CSS) problem with limited time and energy resources in cognitive radio (CR) network. Time duration of sensing and data transmission, if the spectrum is identified as vacant, are ...

    • Optimization of collaborative spectrum sensing with limited time resource 

      Mohammadyan, Fariba; Pourgharehkhan, Zahra; Taherpour, Abbas; Khattab, Tamer ( Springer Verlag , 2015 , Conference Paper)
      In this paper, Cognitive Radios (CRs) collaborate in spectrum sensing to detect random signals corrupted by Gaussian noise. Our analysis is based on a limited time resource assumption. This implies that the time resource ...

    • Secure robust collaborative spectrum sensing in the presence of smart attackers 

      Pourgharehkhan, Zahra; Taherpour, Abbas; Khattab, Tamer ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      In this paper, collaborative spectrum sensing to detect random signals corrupted by Gaussian noise in the presence of smart attackers is studied. Unlike to the most of related works, we consider a blind attacker detection ...