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http://dx.doi.org/10.7236/JIWIT.2011.11.4.195

Comparison of Spectrum Sensing Algorithms for Cognitive Radio Systems  

Choi, Young-Hoon (광운대학교 전파공학과)
Kim, Yoon-Hyun (광운대학교 전파공학과)
Kim, Jin-Young (광운대학교 전파공학과)
Lee, Jung-Hoon (서울과학기술대학교 IT정책대학원)
Cha, Jae-Sang (서울과학기술대학교 매체공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.11, no.4, 2011 , pp. 195-201 More about this Journal
Abstract
Cognitive radio (CR), which is proposed as a technology that utilizes the frequency resources effectively, has studied to relive scarcity of the frequency resources. CR provides opportunistically under-utilize licensed frequency to the secondary user. However, in the wireless channels, due to the effect of fading and shadowing environments, spectrum sensing performance is compromised. Besides, to detect and classify various CR systems, a novel spectrum sensing algorithm is needed. Therefore, in this paper, we proposed the spectrum sensing algorithm with water marking scheme.
Keywords
Cognitive radio; Water marking; Kasami code; Frequency selective fading channel;
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