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A routing method for vehicle network based on topology prediction

A vehicle and network technology, applied in the field of vehicle network communication, can solve the problems of excessive routing maintenance overhead, high resource consumption, and high frequency, and achieve the effects of reducing packet loss rate, improving efficiency, and reducing consumption.

Inactive Publication Date: 2017-09-19
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a vehicle network routing method based on topology prediction, which solves the problems of excessive routing maintenance overhead, high frequency and large resource consumption in the existing vehicle network routing algorithm

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  • A routing method for vehicle network based on topology prediction
  • A routing method for vehicle network based on topology prediction
  • A routing method for vehicle network based on topology prediction

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specific Embodiment

[0103] Here, the application of music downloaded by vehicles in the urban network is taken as an example, such as figure 1 Shown is a scenario where nodes in a vehicle network download music from the Internet through a roadside system. A brief description of the scene is now given. The scene is an urban traffic environment. There are cross roads in the scene, and roadside systems (RSU) are installed on both sides of the road. If the vehicle needs to download information from the Internet, it needs to first send the request information to the roadside system, and the roadside system downloads the information from the Internet network, and then transmits the downloaded information to the target vehicle that sent the download request information. In this scenario, we divide the urban traffic environment into different regions (Regions). Assuming that the vehicle passes through a certain region in the process of reaching the destination, the position where the vehicle leaves the r...

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Abstract

The invention discloses a vehicle network routing method based on topology prediction, which belongs to the technical field of vehicle network communication, and includes the following steps: S1: Uplink routing process, that is, the process in which a vehicle sends information to a roadside system: the specific steps are divided into S11 and S12; S2: downlink routing process, that is, the process in which the roadside system sends information to the vehicle: the roadside system sends the data information required by the initial node to the initial node after the position information changes, that is, the target node. The beneficial effects of the present invention are as follows: in the vehicle network routing algorithm of the present invention, the uplink and downlink routing methods are different, and the uplink route selects the node with the best reliability through the node reliability evaluation model for data communication of the vehicle network, so that the vehicle The reliability of network communication is greatly improved and the packet loss rate is reduced.

Description

technical field [0001] The invention belongs to the technical field of vehicle network communication, and in particular relates to a vehicle network routing method based on topology prediction. Background technique [0002] Due to the particularity of vehicular networks compared to self-organizing mobile networks, such as high-speed movement of vehicles and rapid topology changes, routing algorithms are recognized as a difficult point in vehicular networks. However, the existing routing algorithms for vehicular networks, such as clustering routing algorithms, take into account the mobility of vehicular networks, the cluster generation and cluster maintenance in the clustering routing algorithms are frequent and the efficiency is not high. [0003] In 2007, Y.Gunter, B.Wiegel and H.P.Grossmann published "Cluster-Based Vehicle Network Media Access Concept" on IEEE. At present, most of the cluster-based routing algorithms in vehicle networks only consider the movement of nodes...

Claims

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Application Information

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IPC IPC(8): H04W40/22
Inventor 李龙江袁银霞陈红英
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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