UAV Trajectory, Power, and User-Association Optimization for Covert Communications in ICRNs
This paper studies covert communications in an uncrewed aerial vehicle (UAV)-assisted interweave cognitive radio network (ICRN). Specifically, a secondary user (UAV) opportunistically utilizes the idle spectrum resource of a primary user (Warden) to covertly transmit short-packets to ground receivers (GRs), while Warde...