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Cooperative Spectrum Sensing in Cognitive Radio Systems with Weight Value Applied  

Yun, Heesuk (인하대학교 정보통신공학부 무선전송연구실)
Yun, Jaesoon (인하대학교 정보통신공학부 무선전송연구실)
Bae, Insan (인하대학교 정보통신공학부 무선전송연구실)
Jang, Sunjeen (인하대학교 정보통신공학부 무선전송연구실)
Kim, Jaemoung (인하대학교 정보통신공학부 무선전송연구실)
Publication Information
Journal of Satellite, Information and Communications / v.9, no.3, 2014 , pp. 91-97 More about this Journal
Abstract
In this paper, we propose weighted detection probability with distance between primary user and secondary users by using cooperative spectrum sensing based on energy detection. And we analysis and simulate the result. We suggest different distance between primary user and secondary users and the wireless channel between primary user and secondary users is modeled as Gaussian channel. From the simulation results of the cooperative spectrum sensing with weighted method make coverage bigger compared with non-weight, and We show higher sensing efficiency when we put weight detection probability than before method.
Keywords
Cognitive Radio(CR); Spectrum Sensing; Energy Detection; Cooperative Spectrum Sensing; Detection Probability; SNR; Weighted Function; Fusion Center;
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