Joint Power and Location Design for Energy-Efficient Covert UAV Communications

Summary

Researchers study energy-efficient covert communication in adversarial UAV-enabled wireless systems, where a UAV delivers information to a legitimate ground receiver while a malicious detector with noise uncertainty tries to detect it. They maximize covert energy efficiency, defined as achievable covert throughput per unit of energy, by jointly designing transmit power and flying location. The original three-dimensional problem is reduced to a one-dimensional search over the flying angle, and numerical results verify the derivations.