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Performance Analysis of Collaborative Wideband Sensing Scheme based on Energy Detection with User Selection for Cognitive Radio  

Lee, Mi-Sun (광운대학교 전파공학과)
Kim, Yoon-Hyun (광운대학교 전파공학과)
Kim, Jin-Young (광운대학교 전파공학과)
Publication Information
Journal of Satellite, Information and Communications / v.6, no.2, 2011 , pp. 72-77 More about this Journal
Abstract
Spectrum sensing is a critical functionality of CR network; it allow secondary user to detect spectral holes and to opportunistically use under-utilized frequency bands without causing harmful interference to primary use. Recently, wideband service has been increase for processing abundance of data traffic. So CR network needs a realizable implementation design of spectrum sensing for wideband. To get high resolution performance of wideband sensing must precede algorithm processing for reliability signal detection. By the way, the performance of spectrum sensing can be degraded due to fading and shadowing. In order to overcome this problem, we propose system model of wideband sensing scheme on energy detected collaborative technique. we divide wideband into narrowbands and use narrowbands to detect signal excepting some narrowbands including bad channel through the CSI. And we simulate and analyze in terms of detection probability with various SNR.
Keywords
Cognitive Radio(CR); Spectrum sensing; Wideband sensing; Collaboration; Energy detection;
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