Author(s)

He Yang and Bao Liu

Corresponding Author

He Yang

Abstract

Cognitive radio network (CRN) is a wireless communication network with cognitive characteristics. With the development of cognitive radio, extending to the network level, CRN can use the idle authorized frequency band without disturbing the authorized users, so as to improve the efficiency of frequency band and meet the spectrum needs of more wireless users. In this paper, the technology of CRN is summarized firstly, then the security problems in CRN are introduced, and the future development direction is prospected finally.

Keywords

Cognitive radio network (CRN); Spectrum sensing; Network security; Fusion center