Method for releasing information in wireless vehicle ad hoc network

Abstract

The invention relates to a method for releasing information in a wireless vehicle ad hoc network. The method comprises the following steps that: an information source vehicle releases broadcasting information; a first vehicle which receives the broadcasting information detects adjacent vehicles; the first vehicle calculates the transmission probability of the broadcasting information according to a distance between the first vehicle and an information hovering area if an adjacent second vehicle which does not receive the broadcasting information is detected and is located outside the information hovering area; and the first vehicle transmits the broadcasting information to the second vehicle according to the transmission probability. By adopting the method for releasing the information in the wireless vehicle ad hoc network, the attainability of a message is increased and interactive messages are reduced to enable information to reach the vehicle with high reliability; storage demands are greatly reduced and slowed down due to minimum interactive messages in the same time and fewer information interactive times to obviously save power; and information transmission time is shortened as a result of few available bandwidth. Moreover, the method for releasing the information in the wireless vehicle ad hoc network has stable and reliable working performance and wider application ranges.

Description

technical field [0001] The invention relates to the field of wireless vehicular ad hoc networks, in particular to the technical field of information broadcasting methods in the wireless vehicular ad hoc network, and specifically refers to a method for publishing information in the wireless vehicular ad hoc network. Background technique [0002] Wireless vehicle self-organizing network technology is one of the foundations of intelligent transportation. Through the mutual communication between vehicles and vehicles, vehicles and roadside nodes, a wireless communication network is formed by exchanging messages, which is used to transmit useful real-time information to assist drivers or avoid accidents, and at the same time provide data services such as in-vehicle entertainment, real-time navigation, and Internet access. Make the transportation network safer, more efficient and more comfortable. [0003] Recently there has been an increasing amount of research on VANETs (Vehicl...

AI Technical Summary

Problems solved by technology

[0007] However, the information exchanged by this method is huge. As mentioned above, it is a waste of resources. In order to reduce the number of exchanged messages, the obvious method is to adopt blindly flooded broadcasts in the wandering area. Time will reduce the reachability of messages. Low traffic density may lead to intermittent connection of the vehicle network, which means that the car disconnected from the network will never receive the message, so the reachability becomes lower.

Images