Low-delay transmission method based on backbone vehicle forwarding in vehicle of things communication

Abstract

The invention relates to a low-delay transmission method based on backbone vehicle forwarding in vehicle of things communication. The method is applied to a V2V (Vehicle to Vehicle) communication scheme in a highway environment. According to the method, when a certain vehicle receives a new event message, the new event message is forwarded to all adjacent vehicles in a valid communication range; moreover, the adjacent vehicle with the highest communication capability value at present is selected and activated as a backbone vehicle according to communication capability values of each adjacent vehicle and the other adjacent vehicles are taken as general vehicles; and only the backbone vehicle forwards the new event message and the general vehicles only receive the new event message. Compared with the prior art, the method has the advantages that forwarding nodes are reduced by forwarding the message through the backbone vehicle, so the forwarding delay is reduced, and the low-delay communication is realized.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a transmission scheme under a wireless communication network, and in particular to a low-delay transmission method based on backbone vehicle forwarding in vehicle networking communication. Background technique [0002] With the rapid development of social economy, the problem of road traffic safety has become increasingly prominent. In the face of frequent traffic accidents, the space for reducing road traffic accidents by using traditional methods such as improving the quality of traffic infrastructure and strengthening traffic safety education has become increasingly limited. With the development of information and communication technology, vehicles and vehicles, vehicles and infrastructure Communication between facilities to strengthen people's judgment on the surrounding environment of the vehicle. When road dangers are detected, timely warnings are provided to drivers t...

AI Technical Summary

Problems solved by technology

The end-to-end communication delay is related to the number of forwarding times of intermediate nodes and the delay per hop. However, the traffic density of the vehicle network communication environment is relatively high, and messages need to be forwarded a lot before they can reach Shinjuku successfully. This will not only cause excessive delay, but also cause A lot of unnecessary communication overhead

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