cognitive radio networks; combined censoring and sleeping; ZigBee; IEEE 802.15.4; energy-effiency; sleeping rate; censoring rate
Résumé :
[en] We consider a combined sleeping and censoring scheme for energy-efficient spectrum sensing in cognitive sensor networks. We analyze the detection performance of this scheme by theoretically deriving the global probabilities of detection and false-alarm. Our goal is to minimize the energy consumption incurred in distributed sensing, given constraints on the global probabilities of detection and false-alarm, by optimally designing the sleeping rate and the censoring thresholds. Using specific transceiver models for sensors based on IEEE 802.15.4/ZigBee, we show the energy savings achieved under an optimum choice of the design parameters.
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
MALEKI, Sina ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Pandharipande, Ashish
Leus, Geert
Langue du document :
Anglais
Titre :
Energy-efficient spectrum sensing for cognitive sensor networks
Date de publication/diffusion :
novembre 2009
Nom de la manifestation :
35th Annual Conference of IEEE Industrial Electronics, 2009. IECON '09
Lieu de la manifestation :
Porto, Portugal
Date de la manifestation :
3-5 Nov. 2009
Sur invitation :
Oui
Manifestation à portée :
International
Titre de l'ouvrage principal :
35th Annual Conference of IEEE Industrial Electronics, 2009. IECON '09
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