Impersonation attack identification for secure communication

Security possesses a significant role in wireless communication. While the studies about secure communication are performed through the upper layers, recent trends shift attention to security in physical layer. In this study, we propose a solution about how to identify the impersonation attacks. If illegitimate transmitter is further away from the receiver when compared to legitimate transmitter, we can detect the spoofing signal by utilizing the hypothesis test which can be carried out depending on the power delay profile of the channel. After setting the hypothesis test, we look at the probability of detection and probability of false alarm of the received signal. It is shown that if the impersonation attack is carried out from further distance, it can be identified with high probability of detection.