SPECTRUM SENSING PERFORMANCE OF COGNITIVE RADIO UNDER AWGN AND FADING CHANNEL CONDITIONS

K. Annapurna, B. Seetha Ramanjaneyulu

Abstract: Accurate sensing of the spectrum occupancy is essential for successful implementation of cognitive radio networks. However, due to higher levels of noise and multipath propagation effects of the channel, the sensing information of cognitive radio may not be accurate all the times. In this context, Receiver Operating Characteristics (ROC) of the system gives a measure of this information. It is a curve of probability of true detection with respect to probability of false detection. This paper presents the ROC of cognitive radio system for AWGN, Rayleigh and Rician channels.

Keywords: Cognitive Radio, Spectrum Sensing, Primary User Detection, AWGN Channel, Rayleigh and Rician Channels

DOI: https://doi.org/10.15623/ijret.2015.0406083