Physical Layer Authentication Using MmWave Channel State Information

This paper proposes an intelligent physical layer authentication scheme to learn the time-varying features of physical layer for mmWave MIMO communications. Explicitly, we design the physical layer authentication system as a binary classification model based on the kernel machine. We derive the updating methods of the system parameters iteratively. The convergence and performance of the proposed physical layer authentication model are validated by exploiting a mmWave MIMO channel model. Numerical results demonstrate that the proposed intelligent physical layer authentication scheme performs well in mmWave MIMO communications.