UAV Trajectory Optimization for Time-Constrained Data Collection in UAV Monitoring Systems
Kai Liu, Jun Gang Zheng · GLOBECOM 2022 - 2022 IEEE Global Communications Conference · 2022
This paper studies the UAV trajectory planning problem in a UAV monitoring system and considers a typical data collection scenario, where a UAV is dispatched to a geographical area to collect time-constrained data in a set of monitoring areas and transmit collected data to a ground base station (GBS). We formulate the UAV trajectory planning problem as an optimization problem with the objective to minimize the UAV's mission completion time by jointly optimizing the UAV's waypoints and the duration the UAV stays in each line segment, taking into account the age of information (AoI) of data in the monitoring area, and the on-board energy of the UAV. To solve the problem, we propose a successive convex approximation (SCA) based optimization algorithm. Simulation results show that the proposed trajectory optimization algorithm can find a better solution to the problem than a benchmark algorithm.