| In today's world,transportation is of great significance to the social economy.The birth and development of the Internet of Vehicles affects traffic all the time.There are three main types of Internet of Vehicles applications:security-oriented applications,convenience-oriented applications,and commercial-oriented applications.In the network of vehicle networks with vehicle nodes as the main body,the autonomous mobility of vehicles and the rapidity of movement are all increasing the difficulty of network routing.In IOV network with unstable link quality and end-to-end routing,nodes need to follow the characteristics of "storage-carry-forward".This paper divided into two main parts:friend relationship algorithm and non-friend node routing strategy.Firstly,according to the correlation analysis between three-dimensional social relations,the friend relationship based on vehicle nodes is designed,and the contact time between vehicle,disconnection time,contact frequency and other information are obtained by using the contact between vehicles to analyze the relationship between vehicle nodes in the stage.Find the link with stability and record updates,and use this algorithm to find the current stable link in the network before the vehicle routing and forwarding phase.Then the non-friend node routing strategy with friend algorithm is designed,and the forwarding strategy is improved,making it more suitable for urban environment and transmitting with reliable link provided by friend relationship.The routing algorithm can improve the routing transmission efficiency,significantly shorten the end-to-end delay,improve the delivery rate,and improve the overall performance of the routing.Finally,the ONE simulator is used to simulate the routing strategy in the paper.The routing algorithm proposed in this paper can significantly shorten the end-to-end delay in the experiment,and also improve the delivery rate,which is more suitable for the urban environment than other routing strategies. |
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