A Novel Energy Detection Technique for Cooperative Spectrum Sensing in Cognitive Radio

摘要

Co-operative spectrum sensing is used as a promising solution to detect the primary user effectively in a highly noisy environment, where the multiple secondary users make a global decision in relation to the primary user. The Bayesian Estimation Energy Detection (BEED) technique is one of the elegant spectrum sensing techniques available in a non-cooperative environment. So an attempt was made in this paper by incorporating the BEED in a cooperative environment, which yields the detection of primary user effectively up to a Signal to Noise Ratio (SNR) of –19 dB, when the Rayleigh fading effects are considered.