面向分域信息中心网络的协作混合缓存和路由策略

发布时间：2018-06-26 12:09

本文选题：信息中心网络 + 缓存网络　；参考：《电子与信息学报》2017年11期

【摘要】：网内缓存技术一直是信息中心网络(Information-Centric Networking,ICN)研究中的核心问题。传统缓存方案通常为网络内的单一全局协作策略,然而不同网络区域的缓存目标不同,导致传统方案的性能优化程度有限,可扩展性不强。同时协同缓存放置和请求路由,相较于纯缓存方案有效性更高。该文提出并评估了一种新型面向分域的协作混合缓存放置和路由请求机制,该机制将缓存网络区分核心网络和边缘网络,在核心网络中采用非沿路的HASH协作机制,边缘网络采用沿路的回退协作机制,创建二元组标签保存缓存放置的信息并作用于后续的请求转发。通过仿真对比表明,该文提出的协作混合缓存机制相较于传统策略可以更好地平衡网络资源利用和用户体验,并在大型ISPs中拓展性更好。
[Abstract]:Intra-network caching technology has been a core issue in the research of Information-Centric networking Network (ICN). The traditional caching scheme is usually a single global cooperative strategy in the network. However, the cache targets of different network regions are different, which leads to the limited performance optimization and poor scalability of the traditional caching schemes. Cooperative cache placement and request routing are more effective than pure cache schemes. This paper proposes and evaluates a new domain-oriented cooperative hybrid cache placement and routing request mechanism, which distinguishes the cache network from the edge network, and adopts the off-route hash cooperation mechanism in the core network. The edge network uses the backward cooperation mechanism along the road to create binary group tags to store the cache information and act on subsequent request forwarding. The simulation results show that the proposed cooperative hybrid caching mechanism can balance network resource utilization and user experience better than traditional strategies and is more extensible in large ISPs.
【作者单位】：北京邮电大学网络与交换技术国家重点实验室;
【基金】：国家自然科学基金(61302078,61372108) 国家863计划项目(2011AA01A102) 国家科技重大专项(2011ZX03005-004-02)~~
【分类号】：TP393.0

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