Credible routing method of vehicular delay-tolerant network

Abstract

Disclosed is a credible routing method of a vehicular delay-tolerant network. The credible routing method includes adopting a movement model similarity evaluation scheme to transfer data to movement ranges of destination nodes according to similarity among movement models and local real-time information of vehicles, generating L copies by means of a copy equilibrium strategy after source nodes generate data packets, handing out in a cuttable manner, independently executing transfer of each copy until one of the copies reaches the destination nodes, dynamically adjusting the number of copies of different types of data packets, and realizing movement range oriented forwarding and dynamic multi-copies routing. The credible routing method aims to solve the problem that conventional methods are unsupportive to vehicular delay networking and is applicable to the conditions that starting and destination vehicles stay moving but routing cannot be determined in advance and information transmission is determined by relay vehicles skip by skip.

Description

technical field [0001] The invention relates to the network routing technology, especially the routing technology of the time-delay tolerant network, in particular to a trusted routing method of the vehicle-mounted time-delay tolerant network. Background technique [0002] Vehicle-mounted network is a kind of wireless self-organizing network that relies on vehicles equipped with wireless communication equipment to realize data transmission. In recent years, with the development of wireless communication technology and vehicle GPS system, vehicle network has been widely used. For example: the traffic flow information is broadcast to the vehicles on the road through the vehicle network, the driver can change the driving route in advance to avoid the congested road section; the traffic accident information is transmitted to the nearest police station and emergency center, and the accident can be handled in time; the driver Use the in-vehicle network to inquire about nearby gas...

AI Technical Summary

Problems solved by technology

However, in the vehicular network, the high mobility of the vehicle causes the connection between the vehicles to be interrupted frequently, making it difficult to ensure a continuous and stable connection.

(2) When the density of the vehicle is low, the vehicle is likely to be in an isolated state, and there is no communicable neighbor vehicle, resulting in the discarding of data packets

This method can ensure the accuracy of data transfer, but requires a large amount of additional infrastructure

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