Securing mmWave Vehicular Communication Links with Multiple Transmit Antennas

Abstract

This paper presents a low-complexity physical layer security technique for millimeter wave (mmWave) vehicular communication systems. The proposed technique exploits the large dimensional antenna arrays available in mmWave systems and the road reflected path to generate location dependent transmission. This results in coherent transmission to the legitimate receiver and interference that jams eavesdroppers with sensitive receivers along the same lane of travel. Theoretical and simulation results demonstrate the validity and effectiveness of the proposed technique and show that high secrecy throughput can be achieved when compared to directional array transmission techniques.