Physical Layer Security Enhancement for Cognitive Radio Networks using SINR-Based Cooperative Beamforming Sathish S*, Kumar P Suresh** *Jayalakshmi Institute of Technology, Thoppur, Tamil Nadu, India **Mahendra Engineering College, Mallasamudram, Namakkal, Tamil Nadu, India Online published on 2 July, 2016. Abstract A new cognitive radio network (CRN), where cooperative beamforming is designed to intensify the physical layer security of both primary users (PUs) and secondary users (SUs). Specially, the purpose of the design is to minimize the transmit power of a secondary transmitter, while an eavesdropper, a primary receiver, and multiple secondary receivers are offered with distinct signal to-interference-and-noise-ratio (SINR). In direct transmission, when distance increases, it results in signal fading. Here, signal fading is avoided using relay between the users, which result in the reduction of outage probability. The performance of the proposed optimal approach is evaluated using computer simulations. Top Keywords Cognitive Radio Network (CRN), Cooperative Beamforming, Physical Layer Security, Transmit Power, Signal-To-Interference-And-Noise Ratio (SINR), Signal Fading. Top |