期刊名称：International Journal of Grid and Distributed Computing
印刷版ISSN：2005-4262
出版年度：2016
卷号：9
期号：1
页码：145-154
DOI：10.14257/ijgdc.2016.9.1.15
出版社：SERSC
摘要：Cognitive radio networks (CRN) is IEEE 802.22 standards, also known as 5-G wireless technology. CRN carries primary users (PU) or licensed users and secondary users (CR) or un-licensed users. In this paper, we have presented an overview of CRN, further we discuss CRN functions. There are various sensing techniques which we classify and discuss, and further analyze the issues related to CRN. Finally, we conclude that each sensing technique has its own advantages and dis-advantages.
关键词：Cognitive Radio Network; Primary user; Cognitive Radio User; Spectrum ; Sensing; SNR
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