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Performance Analysis of Energy Detection Spectrum Sensing Using Adaptive Threshold through Controlling False alarms  

Seo, SungIl (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Lee, MiSun (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Kim, Jinyoung (광운대학교 전파공학과 소속 유비쿼터스 통신 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.8, no.1, 2013 , pp. 61-65 More about this Journal
Abstract
In this paper, we propose system model to solve conventional threshold problem of using fixed false alarm for energy spectrum sensing. Spectrum sensing reliability is ensured when Secondary user have high SNR. Thus, it is not reasonable using fixed optional false alarm without considering CR user's SNR. So, we propose adaptive threshold method. adaptive threshold is decided by controling FA according to CR user's SNR.
Keywords
Cognitive Radio; Spectrum Sensing; Energy detection; Control FA; Adaptive Threshold;
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