基于缓存价值的信息中心网络转发和缓存策略  

Routing Forwarding and Cache Placement Strategy Based on Cache Value in Information-Centric Networking

作　　者：史瑞昌[1] 芮兰兰[1] 黄豪球[1] 彭昊[1] SHI Rui-chang RUI Lan-lan HUANG Hao-qiu PENG Hao(State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China)

机构地区：[1]北京邮电大学网络与交换技术国家重点实验室,北京100876

出　　处：《北京邮电大学学报》2016年第5期37-41,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61302078;61372108);国家高技术研究发展计划(863计划)项目(2011AA01A102);北京高等学校青年英才计划项目(YETP0476)

摘　　要：针对信息中心网络缓存放置策略和路由转发策略,提出了一种基于缓存价值的路由转发和缓存放置策略.在缓存价值决策中,考虑到节点繁忙度和路径时延因素,利用夏普利值设计了支持决策的报文格式和路由转发策略;在缓存放置策略中,使用Scope字段,控制缓存副本个数和放置的范围.仿真实验结果表明,该策略有较高的缓存命中率,能有效地减少平均请求跳数.Information-centric networks（ ICN） is a novel network architecture centered on content data.But the current route cache strategies exist shortcomings. This paper proposes a routing forwarding and cache placement strategy based on cache value,and then in the cache value decision,considering the busy degree and path delay of the node,we use Shapley value to design the strategy which is in order to support the message and the routing forward; In the caching resolution strategy,we use the Scope field to control the number and the Scope of cached copies. Simulation results show that the proposed method has a high cache hit ratio,and it can effectively reduce the average number of hops.

关 键 词：未来网络体系架构 信息中心网络 夏普利值 缓存放置策略 路由转发策略 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]