Method for dispatching vehicular Ad Hoc network service with broadcast priority

Abstract

The invention discloses a method for dispatching vehicular Ad Hoc network service with broadcast priority, and is suitable for communication of vehicles and roadside units in a vehicular Ad Hoc network. The method consists of a stage of requesting to jump the queue of a roadside unit service and a stage of serving the request, wherein the stage of requesting to jump the queue of the roadside unit service is the key point of the service dispatching method, which realizes effective arrangement to the requests on the service queue of the roadside unit; and the stage of serving the request by the roadside unit is to complete the subsequent work of the first stage, namely the roadside unit serves or abandons the request sent by the vehicle. The dispatching method improves the state of channel bandwidth waste due to the fact that the conventional simple priority policy does not consider the difference of communication modes, and cannot provide uniform service for the same request sent by a plurality of vehicles, and ensures that the channel utilization is increased and the load of the roadside unit is reduced by providing uniform broadcast service for the same request sent by the plurality of vehicles.

Description

technical field [0001] The invention belongs to the technical field of vehicle-mounted ad hoc network communication, in particular to an efficient service scheduling method based on broadcast priority, which solves the problems of insufficient processing capability and waste of channel bandwidth on roadside units. The on-board ad hoc network structure of the unit. The application of this method in the vehicle ad hoc network can reduce the waste of channel bandwidth, prevent some service requests from failing due to insufficient processing capacity of the roadside unit, and improve the efficiency of the roadside unit processing the vehicle unit request and the service request rate. Background technique [0002] Vehicular Ad-hoc Networks (VANET) is a form of mobile ad hoc network, which is suitable for ad hoc network systems that communicate between adjacent vehicles and between vehicles and nearby fixed facilities. Drivers provide a safe and comfortable traffic environment, ...

AI Technical Summary

Problems solved by technology

[0015] The present invention is an innovation based on the existing priority scheduling method. It mainly aims at the failure of the previous simple priority strategy to take into account the differences in communication modes and the failure to uniformly serve the same requests sent by multiple vehicles, thereby To improve the problem of wasting channel bandwidth, a broadcast-first service scheduling method (Broadcast-First Service Scheduling Scheme, BFS) is proposed

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