Energy detection approach for spectrum sensing in cognitive radio systems with the use of random sampling
Résumé
In radiomobile contexte, radio frequency spectrum is a ressource that needs to be used with appropriate e ciency. This can be achieved by the mean of spectrum sensing operation. This function consists to analyze the occupancy of the radio frequency spectrum in order to detect which bands are unused. This concept is largely appreciated in cognitive radio where more exibility is required to adapt to the communication environment. Di erent techniques are presented in the literature. In this paper, we are interested by the application of the Energy Detector (ED) method for spectrum sensing. This application is performed in cognitive radio systems with the use of random sampling. The performance of this approach is evaluated in term of its Receiver Operating Characteristic (ROC) curve and compared to the uniform sampling case.