An information recursive broadcasting method based on the cluster structure of the Internet of Vehicles

Abstract

The invention provides an information recursive broadcasting method based on an Internet of vehicles cluster structure. An accident vehicle is used as a cluster head to broadcast emergency information to the vehicle behind the accident vehicle; the vehicle behind the accident vehicle sends response information to the accident vehicle after receiving the emergency information; and the accident vehicle takes the related vehicle as the cluster member according to the received response information; the vehicle most distant from the accident vehicle in the cluster is set as the cluster head of a second cluster by sending response reply information, wherein the cluster head vehicle forwards the received emergency information to the behind vehicle. By use of the method provided by the invention, the effective delivery of the information is guaranteed, the vehicles which are behind the cluster head and drive on the same road and direction can successfully receive the information, thereby constructing the cluster. And meanwhile, the node most distant from the cluster head is used as the next cluster head to broadcast the emergency information; and the only cluster head in the related node can forward the emergency information, thereby avoiding the broadcast storm.

Description

technical field [0001] The invention relates to the field of data communication, in particular to an information recursive broadcast method based on the cluster structure of the Internet of Vehicles. Background technique [0002] At present, in the urban Internet of Vehicles, commonly used broadcast algorithms for security applications include intersection-based broadcast algorithms, cluster-based broadcast algorithms, topology-based broadcast algorithms, and related broadcast algorithms based on flooding or flooding modification. However, in the urban Internet of Vehicles, the topological structure of vehicles changes frequently, the distribution of vehicles is uneven, and the influence of traffic lights on the movement of vehicles. In addition, structures such as overpasses make the topology of urban roads three-dimensional. Performance of the broadcasting algorithm. At the scene of the accident, the traditional flooding broadcast algorithm was identified as the simplest ...

AI Technical Summary

Problems solved by technology

However, in the urban Internet of Vehicles, the topological structure of vehicles changes frequently, the distribution of vehicles is uneven, and the influence of traffic lights on the movement of vehicles. In addition, structures such as overpasses make the topology of urban roads three-dimensional. Performance of the Broadcasting Algorithm

At the scene of the accident, the traditional flooding broadcast algorithm was identified as the simplest and most effective broadcast algorithm. However, due to its mechanism of forwarding the broadcast after receiving it, it is very easy to cause the broadcast storm problem when the vehicle density is high. Secondly, The broadcast information cannot be effectively delivered, so that many non-related nodes can also receive emergency information

Images