Optimization Method of Relay Network Deployment Using Multi-UAV for Emergency Communication

The unique advantages of UAV with good maneuverability, ease of deployment and control can effectively meet the needs of emergency communications network construction. In order to solve the problem of effective communication security in large-area rescue areas, the idea of using multiple UAVs to construct an emergency relay network was proposed. Under the given mission area, the deployment of this network was studied. First of all, in order to fit the practical application, consider the channel fading to model the UAV coverage area, and propose a UAV relay network model based on connectivity probability. Then, according to the needs of emergency communication scenarios, from the perspective of simplifying the algorithm time complexity and guaranteeing the accuracy of the solution, an algorithm based on simulated annealing for deployment of UAV relay network is proposed. The simulation results show that the proposed algorithm has strong effectiveness and stability and can be applied to the deployment of UAV relay network in the context of emergency communications.