期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2012
卷号：41
期号：1
页码：020-025
出版社：Journal of Theoretical and Applied
摘要：Cognitive Radio (CR) is a technique which is used to improve the utilization of the radio spectrum. It is a software controlled radio that senses the unused frequency spectrum at any time. The main problem in cognitive radio is spectrum sensing. In this paper, the comparison of different techniques for spectrum sensing and transceiver from different perspectives is presented and a new architecture is suggested, which can give a better hardware resources utilization and also spectrum sensing time can be reduced.
