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Correlated multiple antennas spectrum sensing under calibration uncertainty

Autor
Pourgharehkhan, Z.; Taherpour, A.; Sala, J.; Khattab, T.
Tipus d'activitat
Article en revista
Revista
IEEE transactions on wireless communications
Data de publicació
2015-12-01
Volum
14
Número
12
Pàgina inicial
6777
Pàgina final
6791
DOI
https://doi.org/10.1109/TWC.2015.2459706 Obrir en finestra nova
Projecte finançador
Comunicaciones y Procesado de Señal en Escenarios Adversos - 1
Repositori
http://hdl.handle.net/2117/83853 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7164326 Obrir en finestra nova
Resum
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 antennas and unequal per-antenna noise variances to accommodate calibration errors. First, we derive the exact as well as the asymptotic performance of the genie-aided (benchmark) detector with perfect knowledge of the antenna correlation coefficients, the primary user (PU) sig...
Citació
Pourgharehkhan, Z., Taherpour, A., Sala, J., Khattab, T. Correlated multiple antennas spectrum sensing under calibration uncertainty. "IEEE transactions on wireless communications", 01 Desembre 2015, vol. 14, núm. 12, p. 6777-6791.
Paraules clau
Antenna correlations, Calibration uncertainty, Cognitive radio, Cognitive radio networks, Convex optimization problem, Fading correlation, Multiple antennas, Noise, Receivers, Spectrum sensing, Systems
Grup de recerca
SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions

Participants

  • Pourgharehkhan, Zahra  (autor)
  • Taherpour, Abbas  (autor)
  • Sala Alvarez, Jose  (autor)
  • Khattab, Tamer  (autor)