The invention discloses a roadside unit deployment and content caching and transmission method based on a request probability, and the method comprises the steps: based on a vehicle on a street, a roadside unit deployed on the street, and content cached in a content library in the roadside unit, sending a content request based on a target vehicle, and caching the position of the content corresponding to the content request in a target region, by optimizing the caching method of the roadside unit, the transmission distance of the content is minimized, and the caching process of the roadside unit on the content is completed. Meanwhile, the driving vehicle is preferentially selected to forward the content, and meanwhile, the roadside parking vehicle caches the content according to the request probability of the content and the distance between the street where the roadside parking vehicle is located and the content request street. And obtaining the shortest transmission path from the content corresponding to the content request to the target vehicle cache. Through the technical scheme of the invention, the deployment cost of the network is reduced, the cache resources of the network are fully utilized, and the performance of the network is improved.

    本发明公开了基于请求概率的路边单元部署与内容缓存和传输方法,基于街道上的车辆、街道上部署的路边单元、缓存在路边单元中的内容库中的内容,基于目标车辆发出内容请求,针对该内容请求所对应内容缓存在目标区域内的位置,通过优化路边单元的缓存方法使得内容的传输距离最小划,完成路边单元对内容的缓存过程。同时,优先选择行驶车辆转发内容,同时,路边停放车辆依据内容的请求概率和自身所在街道与内容请求街道之间的距离缓存内容。获得该内容请求所对应内容到目标车辆缓存的最短传输路径。通过本发明的技术方案,降低了网络的部署成本,充分利用了网络的缓存资源,提升了网络的性能。


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    Title :

    Roadside unit deployment and content caching and transmission method based on request probability


    Additional title:

    基于请求概率的路边单元部署与内容缓存和传输方法


    Contributors:
    ZHU QI (author) / YUE SHAOQI (author)

    Publication date :

    2022-09-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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