RIDSI:一种融合SDN和兴趣域划分的ICN路由机制  

RIDSI: an ICN Routing Mechanism Combining SDN and Interest Domain Partitioning

作　　者：王海月 王兴伟 张爽[2] 黄敏[3] WANG Hai-yue;WANG Xing-wei;ZHANG Shuang;HUANG Min(School of Computer Science&Engineering,Northeastern University,Shenyang 110169,China;School of Software,Northeastern University,Shenyang 110169,China;School of Information Science&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]东北大学软件学院,沈阳110169 [3]东北大学信息科学与工程学院,沈阳110819

出　　处：《小型微型计算机系统》2020年第1期132-138,共7页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61572123,61872073)资助;辽宁省高校创新团队支持计划项目(LT2016007)资助

摘　　要：信息中心网络(Information-Centric Networking,ICN)中的服务质量(Quality of Service,QoS)路由是分布式的,无法感知其它路由器缓存的内容,因此,基于软件定义网络(Software Defined Networking,SDN)的全局视图和集中控制功能,本文提出了一种基于兴趣域划分的ICN路由机制.这种机制旨在减轻内容节点的负载、提高路由成功率和提高PIT命中率.首先,本文提出了基于SDN的ICN网络模型,即软件定义信息中心型网络(Software Defined Information Centric Networking,SD-ICN)模型和QoS评价模型.然后,采用蜂群算法将网络中的路由器划分到不同的兴趣域.最后,基于改进的QoS依赖多播路由(QoS Dependent M ulticast Routing,QDM R)算法计算满足多个兴趣请求的转发路径.仿真实验结果表明,本文提出的路由机制与对比机制相比在路由成功率、平均路由延迟、负载均衡度等方面都具有较好的性能.The Quality of Service(QoS)routing in Information-Centric Networking(ICN)is distributed and cannot be perceived by other routers.Therefore,based on the function of global viewand centralized control of Software Defined Networking(SDN),an ICN routing mechanism based on interest domain partitioning is proposed.In this paper,this mechanism can reduce the load on content nodes,improve routing success rate and increase PIT hit rate.Firstly,this paper proposes an SDN-based ICN network model,namely Software Defined Information Centric Networking(SD-ICN)model and QoS evaluation model.Secondly,the Bee Colony algorithm is used to divide the routers in the network into different interest domains.Finally,a forwarding path that satisfies the plurality of interest requests is calculated based on the improved QoS Dependent Multicast Routing(QDMR)algorithm.The simulation shows that the routing mechanism designed in this paper has good performance in many aspects such as routing success rate,average routing delay and load balancing degree compared with the comparison mechanism.

关 键 词：软件定义网络 信息中心网络 兴趣域 路由 服务质量 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]