Physical-Layer Security in LTE Cellular Links: Simulation Results and Standardization Perspectives

In this paper, we discuss the applications of physicallayer security in LTE cellular networks. In particular, we consider three application areas of physical-layer security: authentication, key generation, and confidentiality. We present a few physicallayer security extensions targeting aforementioned application areas and demonstrate how they can be implemented in LTE systems. We also present their performance assessment in a simulated LTE cellular environment which was obtained with open-source LTE link-level simulators developed by Technical University of Vienna. Finally, we offer our view on standardization perspectives of the considered physical-layer security extensions.