Primary user emulation (PUE) attacks and mitigation for cognitive radio (CR) network security
The need to meet the ever-increasing spectrum demands of emerging wireless applications and the need to better utilize spectrum have led the Federal Communications Commission (FCC) to revisit the problem of spectrum management. In the conventional spectrum management paradigm, most of the spectrum is allocated to licensed users for exclusive use. Recognizing the significance of the spectrum shortage problem, the FCC is considering opening up licensed bands to unlicensed operations on a non-interference basis to licensed users. In this new paradigm, unlicensed users (a.k.a. secondary users) “opportunistically” operate in fallow licensed spectrum bands without interfering with licensed users (a.k.a. primary or incumbent users), thereby increasing the efficiency of spectrum utilization. This method of sharing is often called Dynamic Spectrum Access (DSA).
KeywordsMedium Access Control Cognitive Radio Primary User Secondary User Federal Communication Commission
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