Enhanced PUE Detection and Selfish Secondary User Detection Method in Cognitive Radio Networks

In cognitive radio networks (CRNs),cognitive radio (CR) nodes adaptively access the spectrum aiming to maximize the utilization of the scarce resource. A new security threat known as the Primary User Emulation attack raises a great challenge to CRNs. In the proposed method an innovative technique is introduced which is called as Enhanced PUE detection method and selfish secondary user detection method. In the Enhanced PUE detection, PUE detection approach can be extended to address the scenario with multiple classes of PUs that have different SAP features. The Selfish Secondary User detection method, attacks are detected by the cooperation of other legitimate neighboring Secondary Users.