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A new spectrum sensing method using output analysis of the PFD

Vahidpoor, Z ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1109/TCSII.2013.2251972
  3. Publisher: 2013
  4. Abstract:
  5. In this brief, a new blind spectrum sensing method is proposed based on frequency comparison using a phase frequency detector (PFD). The PFD output patterns are utilized in a way to sense the spectrum with no knowledge of incoming signals, noise, or channel parameters. The detection and false alarm error probabilities are analytically calculated for additive white Gaussian noise and sine-wave input and are simulated for different inputs. It is shown that the required detection and false alarm probabilities can be achieved by changing the system parameters. The results show that the proposed method has lower complexity and outperforms the previous single-antenna blind method over flat fading channel
  6. Keywords:
  7. Cognitive radio (CR) ; Spectrum sensing ; Additive White Gaussian noise ; Blind spectrum sensing ; Error probabilities ; False alarm probability ; Flat-fading channels ; Frequency comparison ; Phase frequency detectors ; Cognitive radio ; Errors ; Fading channels ; Probability ; Gaussian noise (electronic)
  8. Source: IEEE Transactions on Circuits and Systems II: Express Briefs ; Volume 60, Issue 6 , 2013 , Pages 366-370 ; 15497747 (ISSN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6506096