LAUSR

In this letter, we focus on the trajectory design problem in wireless communications aided by unmanned aerial vehicles (UAVs), where a UAV serves multiple ground users for wireless transmission, to maximize the minimum transmission rate for all the ground users. A novel approach based on finite Fourier series (FFS) is proposed to reconstruct the trajectory with harmonics. Simulation results show that the FFS-based approach achieves similar max-min rate performance compared to the prevailing approach based on discrete waypoints (DW) while it is significantly less time-consuming due to a reduced number of variables.