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On the performance of Hadamard ratio detector-based spectrum sensing for cognitive radios

Author
Sedighi, S.; Taherpour, A.; Sala, J.; Khattab, T.
Type of activity
Journal article
Journal
IEEE transactions on signal processing
Date of publication
2015-07-15
Volume
63
Number
14
First page
3809
Last page
3824
DOI
https://doi.org/10.1109/TSP.2015.2434330 Open in new window
Project funding
Communications and Signal Processing in Adverse Scenarios - 1
Repository
http://hdl.handle.net/2117/79165 Open in new window
URL
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=7109917 Open in new window
Abstract
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 b...
Citation
Sedighi, S., Taherpour, A., Sala, J., Khattab, T. On the performance of Hadamard ratio detector-based spectrum sensing for cognitive radios. "IEEE transactions on signal processing", 15 Juliol 2015, vol. 63, núm. 14, p. 3809-3824.
Keywords
Cognitive radio, Energy detection, Generalized likelihood ratio test (GLRT), Multiple antennas, Networks, Performance evaluation, Sample correlation matrix, Signals, Spectrum sensing, Tests, Uncalibrated receivers, User, Variance
Group of research
SPCOM - Signal Processing and Communications Group

Participants

  • Sedighi, Saeid  (author)
  • Taherpour, Abbas  (author)
  • Sala Alvarez, Jose  (author)
  • Khattab, Tamer  (author)