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International Conference on Smart and Sustainable Technologies (SpliTech)

Shielding UAV Communications with Quantum Security: A Framework Against Eavesdropping

Drashti Ashara, Parth Vyas, Rajesh Gupta, Sudeep Tanwar, Ousmane Diallo, Sudhanshu Tyagi, Ankur Guptall, Joel J. P. C. Rodrigues

Published Jun 1, 2026• 0 citations
Publisher
DOI
10.23919/splitech70133.2026.11685446

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Due to the advantages such as excellent mobility, low-cost, on-demand deployment, unmanned aerial vehicles (UAVs) are expected to play a significant role in the future wireless communication systems. One of the necessary and urgent problems is the physical layer security of this wireless communication system. Specifically, under the open nature of the UAV wireless channels, how to convey confidential information reliably in a coexistence environment with eavesdroppers. In this paper, we investigate a Q-learning based security scheme to maximize the average secrecy rate (ASR) against intentional or unintentional eavesdropping. Simulation results show comparable disguising performances compared with the benchmark method.
Unmanned aerial vehicles (UAVs) are foreseen to constitute promising airborne communication devices as a benefit of their superior channel quality. But UAV-to-ground (U2G) communications are vulnerable to eavesdropping. Hence, we conceive a sophisticated physical layer security solution for improving the secrecy rate of multi-antenna aided U2G systems. Explicitly, the secrecy rate of the U2G MIMO wiretap channels is derived by using random matrix theory. The resultant explicit expression is then applied in the joint optimization of the MIMO transceiver and the UAV location relying on an alternating optimization technique. Our numerical results show that the joint transceiver and location optimization conceived facilitates secure communications even in the challenging scenario, where the legitimate channel of confidential information is inferior to the eavesdropping channel.