<p>In vehicular ad hoc networks, the current method does not
consider the delay of data transmission, resulting in slower vehicle data
transmission speed. A vehicle data transmission method based on backbone
network is proposed in this paper. </p>
<p>Firstly, the characteristics of vehicle ad hoc network are
analyzed. Based on the statistics of the road, the vehicle cluster is composed
of the vehicles parking on the roadside and no roadside according to the
different directions of the vehicle driving. </p>
<p>The backbone network is constructed on the basis of the
cluster of vehicles, and the data transmission between the vehicles is
implemented by the data transmission method of overlay network. This method can
overcome the disadvantages of traditional data transmission methods, improve
the efficiency of on-board data transmission, and complete the research on fast
data transmission method in wireless vehicle ad hoc network. The experimental
results show that the proposed method can achieve higher data transmission
success rate with lower data transmission overhead and smaller transmission
delay.</p>