| Citation: | TANG J M，HUANG J Q，WANG B W，et al. Resource optimization of multi UAV assisted communication system based on user scheduling[J]. Journal of Beijing University of Aeronautics and Astronautics，2025，51（4）：1143-1151 （in Chinese） doi: 10.13700/j.bh.1001-5965.2023.0241
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In order to improve the transmission rate of multi-user mobile communication downlink wireless transmission systems, a resource optimization method for multi-unmanned aerial vehicle (UAV) auxiliary communication systems based on user scheduling and trajectory optimization is proposed. The proposed method formulates an optimization problem based on maximizing the total throughput of multiple users while satisfying constraints such as user scheduling, total energy consumption of drones, and user service quality requirements. In order to solve the nonconvex problem, the original nonconvex problem is decomposed into three easy to deal with nonconvex subproblems by the block coordinate descent (BCD), and the approximate suboptimal solution of the original nonconvex problem is obtained by introducing relaxation variables, first-order Taylor expression, successive convex approximation (SCA) and other methods to transform the subproblems and solve them alternately. Simulation results show that the proposed method can effectively improve overall system throughput and has good convergence in single and multiple UAV communication systems.
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