A Data Scheduling Method Based on Vehicle Collaboration in Urban Scenarios

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.

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...

AI Technical Summary

Problems solved by technology

[0005] Data transmission in urban scenes is the basis for information sharing. Due to the high-speed changes and uncontrollable factors in the structure of the vehicle ad hoc network, it may be difficult for a single vehicle to meet the data request (DataRequest, DR) during a transmission process.

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