面向移动切换的多无人机部署方法

In recent years, UAV has been widely valued and developed in military and civil fields due to its advantages of diverse functions, flexibility, convenient assembly and low cost. By means of UAV equipped with wireless access equipment, the network can be deployed in the air, which can break through the terrain restrictions for rapid deployment, and is very effective in supporting short-term hot spots and disaster relief. In the environment of multi-UAV aided communication, the handover management of user terminal between UAVs needs to be studied urgently. This paper mainly uses the density peak fast search clustering algorithm to determine the hot spot, that is, divide the hot spot, judging from the distribution and aggregation of ground users, and establish the user distribution model. Then, for each hot spot, in order to improve the success probability of user seamless handover, reduce the failure probability of user handover initiation and reduce the number of deployed UAVs as much as possible, a heuristic algorithm is proposed based on the local density concept to determine the number and locations of deployed UAVs. Finally, based on MATLAB, the user distribution and the multi-UAV deployment method proposed in this paper is simulated. Finally, the UAV deployment location covering the hot area is generated, which verifies the feasibility and rationality of the proposed multi-UAV deployment method.