Our research has involved the characterization of link security in cases when the broadcast employs a device with frequency-angle coupling, such as the leaky-wave architecture discussed above. We have characterized the unique frequency-dependent secrecy capacity of this directional link, which exhibits unusual features not found in ordinary wireless links due to the angular dispersion of the emitted radiation. Interestingly, there are some significant advantages that accrue from this frequency angle coupling, which can be exploited both for enhanced link security and also for implementing effective counter-measures against certain types of eavesdropping attacks.
Publications:
Yeh, Chia-Yi and Ghasempour, Yasaman and Amarasinghe, Yasith and Mittleman, Daniel M and Knightly, Edward W.. (2020). Security in Terahertz WLANs with Leaky Wave Antennas. Proceedings of the 13th ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec).