基于频谱图相关系数的新型频谱感知方法

ognitive radio is a promising concept for coping with the spectrum scarcity in future generation wireless communication networks. Spectrum plays an important role in this new and smart technology. This paper first reviews the background and some related concepts of cognitive radio, and then investigates energy detection based spectrum sensing by focusing on the spectrum sensing function. To deal with the problems of threshold value in energy detection algorithm. a correlation coefficient detection scheme is presented. Through Monte Carlo simulation, the results show that the proposed scheme provides better spectrum sensing performance compared to conventional schemes.