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

Autor
Sedighi, S.; Taherpour, A.; Sala, J.; Khattab, T.
Tipus d'activitat
Article en revista
Revista
IEEE transactions on signal processing
Data de publicació
2015-07-15
Volum
63
Número
14
Pàgina inicial
3809
Pàgina final
3824
DOI
https://doi.org/10.1109/TSP.2015.2434330 Obrir en finestra nova
Projecte finançador
Comunicaciones y Procesado de Señal en Escenarios Adversos - 1
Repositori
http://hdl.handle.net/2117/79165 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=7109917 Obrir en finestra nova
Resum
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...
Citació
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.
Paraules clau
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
Grup de recerca
SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions

Participants

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