一种内容中心型车载社交网络路由机制  

Content-centric Routing Scheme in Vehicular Social Networks

作　　者：石峻岭 王兴伟 黄敏[2] SHI Jun-ling;WANG Xing-wei;HUANG Min(School of Computer Science and Engineering,Northeastern University,Shenyang 110169,China;School of Information Science and Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学计算机科学与工程学院,沈阳110169 [2]东北大学信息科学与工程学院,沈阳110819

出　　处：《计算机科学》2019年第7期50-55,共6页Computer Science

基　　金：国家杰出青年科学基金资助项目(71325002);国家自然科学基金(61572123)资助

摘　　要：为满足车载社交网络(Vehicular Social Network,VSN)中用户对视频等多媒体内容的需求,基于内容中心网络(Information-Centric Networking,ICN)架构,提出一种内容中心型VSN路由机制(Content-centric routing scheme in VSN,CVSN)。在CVSN中,兴趣路由根据车辆节点的相似内容存储选择兴趣包转发节点;数据路由根据车辆节点间的同行率选择数据包转发节点。同时,基于VSN用户的兴趣偏好进行内容的网络内缓存管理,在缓存达到上限时,首先丢弃用户兴趣偏好低的内容。基于公交车应用场景对所提出的路由机制进行了仿真实验,通过与现有机制在包交付率、平均延迟、平均跳数和网络开销方面的性能对比表明了文中提出的机制是可行且有效的。To satisfy the requirement for multimedia(e.g.,video)of Vehicular Social Network(VSN)users,a Content-centric routing scheme in VSN(CVSN)was proposed based on Information-Centric Networking(ICN)architecture.In CVSN,based on the similar content store metrics among vehicle nodes,interest routing selects the forwarding node for an interest packet,while based on the same way probability metrics among vehicle nodes,data routing selects the forwarding node for a data packet.Meanwhile,the in-network caching content is managed according to the interest preference metrics among VSN users.When the caching space is full,the content with low interest preference of user is dropped firstly.Oriented to the bus scenario in cities,by comparing the existed schemes on packet delivery,average hops,average delay and network overhead,simulation experiments show that the proposed scheme is feasible and effective.

关 键 词：车载社交网络 内容中心网络 路由机制 网络内缓存 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]