A multi-UAV relay network supporting mobile ground nodes communication

Aiming at the relay communication problem of mobile ground nodes, this article proposes a multi-UAV relay network that supports mobile ground nodes communication. Through scenario analysis and system modeling, channel model between a ground node and UAV is established, and a single UAV flight model based on weighted centroid strategy is proposed. Based on this, a flight control method for multi-UAV relay network is designed. Simulation results show that the proposed multi-UAV flight strategy can drive the UAV to fly to the optimal relay position, and can follow the motion of ground nodes, adaptively adjust the flight trajectory and network communication topology, thereby providing better relay communication services for mobile ground nodes.