Research On UAV Ad Hoc Network Communication Protocol

In the face of future information-based warfare,the air-based battlefield has more and more demand for drone networking applications.However,due to the relatively special operational environment,especially in the case of large-scale networks,ensuring communication quality between combat platforms has become a major problem.The existing networking technologies and communication protocols are no longer applicable to the multi-platform joint networking of adjacent spaces.Therefore,it is necessary to carry out targeted research and improvement on the basis of existing communication technologies,so that the improved protocol can meet the communication needs of unmanned unit networks,ensure the real-time sharing of information among various platforms,and improve the combat of air-based battlefields.ability.Based on the Ad Hoc networking of UAVs,this dissertation focuses on the large-scale operational scenarios and uses the Ad Hoc network communication protocol of UAVs as the research topic.It mainly studies the following aspects:First,the overall architecture of the network was established.Based on the clustering model of the network,considering the topological structure and network performance,the node clustering scheme based on network reliability was designed to effectively manage the nodes.Ensure high throughput.Second,based on the dynamic TDMA protocol for the channel access problem of the link layer nodes,a time slot allocation scheme based on service priority is designed.For different levels of service time slot requests,time slots are allocated according to the principle of high-level service priority transmission and low-level service delay.Implement cluster nodes to use the shared channel resources in a fair and equitable way.Finally,a simulation platform is built by using simulation tools,and simulation verification work is carried out based on the above research contents.According to the larger-scale operational scenario,the network communication model of drone Ad Hoc network is designed,including the drone node model,network layer and link layer communication protocol model.The feasibility and performance requirements of the designed algorithm are validated.The results show that the clustering scheme can achieve effective cluster management of the nodes in the network,and the throughput can be guaranteed.Indirectly,the survivability of the clustering network can be proved.The channel access scheme can effectively achieve the channel resource allocation of nodes within the cluster,and also meet the delay transmission requirements of various levels of services.The specific time delay corresponding to different service levels can reach 0.06 s,0.17 s and 0.5s,respectively.It is in accordance with the relevant theoretical analysis,and compared with other traditional channel access schemes,the performance has been improved and it has certain reference value for actual service transmission.