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

This paper addresses how to make UAV (unmanned aerial vehicle) communications more energy-efficient while keeping the transmitted information hidden from malicious detectors. The researchers developed a method to jointly optimize the UAV's transmit power and flying location to maximize covert energy efficiency (the amount of information successfully delivered per unit of energy used) while maintaining secrecy against an adversary with imperfect detection capabilities.