Short-distance networking method for Internet of Vehicles

Abstract

The present invention provides a short-distance networking method for the Internet of Vehicles, the method comprising: when a node receives a routing request message, increasing the hop number in the routing request by 1, searching for the reverse path of the source node in the routing table, Create or update the routing table entry; when the node receives the routing response, it searches for the preceding routing item in the routing table; the node increases the hop count in the routing response by 1; if the node and the message to be sent meet the predetermined conditions, the node Buffer packets for a certain period of time to obtain more encodings. The invention proposes a short-distance networking method for the vehicle network, which is suitable for the condition that the topology structure of the vehicle network changes frequently, improves the throughput of the network, and reduces network congestion.

Description

Technical field [0001] The invention relates to an on-vehicle network, in particular to a short-distance networking method for the Internet of Vehicles. Background technique [0002] In order to improve the efficiency of transportation and slow down the rate of resource consumption, intelligent transportation systems are inevitably adopted in vehicle research and development, and vehicle-to-vehicle networks have also become a hot topic for optimizing modern transportation. People can use the wireless communication equipment equipped on the vehicle to complete the direct or indirect communication between the vehicle nodes. At the same time, the vehicle node can also realize wireless communication with the roadside fixed communication equipment on its corresponding wireless communication channel. To achieve the purpose of the vehicle-to-vehicle network in the intelligent transportation system to complete the transmission, processing and interaction process of various transmission i...

AI Technical Summary

Problems solved by technology

[0003] However, the vehicle itself is moving at high speed, and due to the large restrictions on urban roads, the topology of the network is also changing rapidly, the communication time between each node is short, and the existing communication methods between vehicles cannot be well real-time. It adapts to the dynamic characteristics of frequent changes in the topology of the vehicle network, so it does not perform well in network characteristics such as improving network throughput.

When there are too many on-board nodes, it often causes network congestion

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