A Data Scheduling Method Based on Vehicle Collaboration in Urban Scenarios

A data scheduling and scene technology, applied in the field of vehicle network, can solve the problem that it is difficult for a single vehicle to meet data requests

CN105430616BActive Publication Date: 2018-10-30深圳北航新兴产业技术研究院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-10-30

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Abstract

The invention discloses a data scheduling method based on vehicle collaboration in an urban scene. The method implements data scheduling of vehicle collaboration through data information transmission between a vehicle and a roadside unit. The method comprises the following steps: a vehicle node periodically broadcasts a message; the roadside unit receives the broadcast message; request data is scheduled on the basis of speed prediction; data is transmitted between a request vehicle and a collaborative vehicle; and the scheduling data is cleaned. The method implements dissemination scheduling of the request data in a vehicle network in the urban scene, and reduces the network overhead.
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Description

technical field

[0001] The invention relates to a data scheduling method based on a vehicle network in an urban scene, more particularly, a data scheduling method using a cooperative download mechanism in an urban scene, and belongs to the technical field of a vehicle network. Background technique

[0002] Vehicle Ad-hoc Network (VANET) is a vehicle with an onboard unit (OBU) running on the road, and a roadside unit (RSU, sometimes called a roadside foundation) deployed on the roadside. Facilities Infrastructure), control or service centers on the Internet, and electronic devices carried by individuals. It includes three basic communication modes: communication between vehicles (V2V, Vehicle-to-Vehicle), communication between vehicles and roadside units (V2I, Vehicle-to-Infrastructure or I2V, Infrastructure-to -Vehicle) and communication between vehicles and people (V2P, Vehicle-to-People). The in-vehicle network transforms all driving vehicles into mobile wireless nodes o...

Examples

Embodiment 1

[0212] Through the simulation experiment on the vehicle network simulation software NS2 (Network Simulator), the configured simulation experiment configuration parameters:

[0213]

[0214] Experimental results such as Figure 5 shown. The roadside unit executes the speed prediction proposed by the present invention, and according to the prediction result, the scheduling transmission of the request data is carried out to the requesting vehicle and the cooperative vehicle, and the data downloading amount is obviously higher than that of the data transmission scheduling method not using the prediction mechanism (improved 35% to 50%), improving the data download rate.