Research On UAV Scheduling Algorithm Based On Traffic In Emergency Rescue Network

The post-disaster emergency rescue network is complex,involving various technologies such as wireless networks,drones,networking and deployment.It provides strong and enough support for victims in disaster relief,post-disaster rescue work.Deploy emergency rescue network as the basic and primary work for the implementation of rescue,which has vital significance in both theoretical and practical applications.However,the current problem is that the traditional dynamic gateway selection scheme can optimize network delay and improve throughput through link selection,but it cannot solve the problem of heavy traffic within the network.Which is caused by the unpredictable and uneven distribution of traffic in the network caused by the movement of rescue workers or the movement of a large number of victims.Based on the research achievements of wireless network technology and unmanned aerial vehicle technology,we propose to use the architecture of a cluster network composed of a UAV network and a wireless mesh network as a new construction scheme of emergency rescue network.In addition,the introduction of drones can solve the problem of large amounts of traffic transmitting in the network;we can schedule the UAVs due to their highly flexibility.We propose two solutions based on different application scenarios.First,Single Router Traffic Awareness Dynamic Scheduling(SRTADS)based on single-node traffic awareness,which is suitable for sparse traffic,low network bandwidth demand environment.Second,Neighbor Routing Traffic Awareness Dynamic Schedule(NRTADS),which is suitable for environments with high traffic and high network bandwidth requirements.Finally,we use the network simulation to verify the correctness of this paper.The simulation results show that the two proposed algorithms can effectively improve the network throughput and reduce the network delay in the corresponding scenarios.The research work and its innovations are as follows:(1)Applying the cluster network to the emergency rescue network can reduce the routing cost of the entire disaster area network and enhance the scalability of the network;(2)Real-time detection of the throughput of wireless Mesh devices in the study can be used to schedule UAVs based on network changes and give full play to the advantages of UAVs;(3)Simulation experiments are performed multiple times in multiple routing protocols,multiple data rates,and multiple scheduling cycles to ensure the reliability of the simulation results.In addition to the study of improving network throughput,we also have discussed the impact of scheduling period on UAV's survival time.