On Identifying Primary User Emulation Attacks in Cognitive Radio Systems Using Nonparametric Bayesian Classification

Primary user emulation (PUE) attacks, where attackers mimic the signals of primary users (PUs), can cause significant performance degradation in cognitive radio (CR) systems. Detection of the presence of PUE attackers is thus an important problem. In this paper, using device-specific features, we propose a passive, nonparametric classification method to determine the number of transmitting devices in the PU spectrum. Our method, called DECLOAK, …