VANET中基于ICN架构的内容转发策略
发布时间:2018-01-28 17:17
本文关键词: VANET ICN 车辆动态参数 LET 路由构造及筛选 出处:《通信学报》2017年05期 论文类型:期刊论文
【摘要】:结合VANET与信息中心网络(ICN,information centric network)架构,提出基于车辆动态信息的路由构造及筛选策略(SRBS,strategy for routing building and selecting)。摒弃了广泛采用的洪泛策略,通过内容发现定位内容节点,随后构造多个单播转发路径,减少了网络中的无用流量;为保证Data分组能够成功原路返回,在单播路径构造中引入车辆动态参数作为构造依据并结合链路有效时间(LET,link expiration time)进行路径筛选,提高了转发路径的稳定性及可靠性;仿真表明该方案提高了路由对时间的容忍度,充分利用了网络缓存并减少了网络时延及路由跳数。
[Abstract]:Combining VANET with the information center network (ICN information centric network) architecture. This paper presents a route construction and screening strategy based on vehicle dynamic information (SRBS). Strategy for routing building and selection. Abandoned the widely-adopted flooding strategy. The content node is located by content discovery, and then a plurality of unicast forwarding paths are constructed to reduce the useless traffic in the network. In order to ensure the successful return of Data packet, vehicle dynamic parameters are introduced into unicast path construction and link effective time is combined with let. Link expiration time improves the stability and reliability of the forwarding path. Simulation results show that the proposed scheme improves the time tolerance of routing, makes full use of network cache and reduces network delay and routing hops.
【作者单位】: 北京邮电大学网络与交换国家重点实验室;
【基金】:国家自然科学基金资助项目(No.61302078,No.61372108) 国家高技术研究发展计划(“863”计划)基金资助项目(No.2011AA01A102) 国家科技重大基金资助项目(No.2011ZX03005-004-02) 北京高等教育优秀青年教师基金资助项目(No.YETP0476)~~
【分类号】:TN929.5;U495
【正文快照】: 1引言作为智能交通系统(ITS)的重要研究部分,VANET[1]已成为移动网络研究领域的热门话题。随着研究的深入,一些学者发现传统网络模式下的VANET存在诸多不足[2]:1)为动态节点分配IP地址并时刻保持各个节点与IP地址的固定映射非常困难;2)高动态环境下利用IP地址来对车辆节点进行,
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