Routing method and system for vehicle ad hoc network based on social attributes

Abstract

The present invention discloses a method and system for vehicle ad hoc network routing selection based on social attributes, wherein the method includes: in a specific area, according to the social habits of vehicle owners, all vehicles in the area are divided into several communities, each vehicles belong to a community. When there is a message to be distributed in the area, the node carrying the message calculates its own forwarding priority based on the association value of each community to the message, the number of community nodes within the communication range, and the probability of node encounters, and at the same time collects the forwarding priorities of neighboring nodes. Select the node with the highest forwarding priority as the next hop node, forward the message to the next hop node, and the next hop node continues to forward the message until all target nodes receive the message or the message expires. According to the association value of different messages and different communities, the method integrates the forwarding ability to the community where the neighbor node is located and other communities, selects the appropriate forwarding node, and improves the efficiency of message distribution.

Description

Technical field [0001] The present invention relates to the field of in-vehicle data transmission, and Background technique [0002] In the vehicle self-organizing network, as the number of vehicles grow sharply, the complexity of the message increases, how to transmit the news in a timely and effectively, still a problem to be solved. If the message retains or quickly reaches the destination for a long time, it will waste, occupy a large number of resources, affecting network performance. [0003] The news that will be generated in the vehicle-in-vehicle self-organized network is timely and effective in time and efficiently, which is important for enhancing the stability of the vehicle to organize the network and improving the utilization of network resources. If a simple floodstal algorithm is used, the message is passed out when a new neighbor is encountered, and a large amount of repetitive messages will be generated in the network, and the message is not guaranteed to be eff...

AI Technical Summary

Problems solved by technology

[0005] However, most current studies distribute messages to all vehicles in a specific area, without considering the priority differences of different messages in different social groups. For example, some messages in the surrounding area of ​​a school only need to spread among teachers, while others are more Hope to spread to surrounding residents

At the same time, the existing research mainly selects the next hop node based on factors such as the vehicle's position, speed, and moving direction, without fully considering the social attributes of the node, which is prone to repeated messages, affecting the stability of the network and the timeliness of message dissemination

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