Decision-making for in-network caching of Peer-to-Peer content chunks - An analytical modelling study
Decision-making for in-network caching of Peer-to-Peer content chunks - An analytical modelling study
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DOI：
10.1109/nof.2014.7119779
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Xu Zhang;Ning Wang;V. Vassilakis;M. Howarth
中科院分区：
文献类型：
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作者：
Xu Zhang;Ning Wang;V. Vassilakis;M. Howarth
网内内容缓存最近出现在以信息为中心的网络（ICN）的上下文中，其允许在内容路由器侧缓存内容对象。在本文中，我们专门专注于网络缓存的对等（P2P）的内容对象，以提高服务和运营效率。我们提出了一个智能的P2P内容块的网络缓存方案，旨在减少基于P2P的内容流量负载，并实现提高内容分发性能。为此，建议的整体决策逻辑考虑到上下文信息的P2P特性，如块的可用性。此外，我们还分析了相邻的内容路由器之间的协调时，缓存决策，以避免重复的P2P块缓存附近的好处。一个分析建模框架的开发，以定量评估所提出的网络缓存方案的效率。
In-network content caching has recently emerged in the context of Information-Centric Networking (ICN), which allows content objects to be cached at the content router side. In this paper, we specifically focus on in-network caching of Peer-to-Peer (P2P) content objects for improving both service and operation efficiencies. We propose an intelligent in-network caching scheme of P2P content chunks, aiming to reduce P2P-based content traffic load and also to achieve improved content distribution performance. Towards this end, the proposed holistic decision-making logic takes into account context information on the P2P characteristics such as chunk availability. In addition, we also analyse the benefit of coordination between neighbouring content routers when making caching decisions in order to avoid duplicated P2P chunk caching nearby. An analytical modelling framework is developed to quantitatively evaluate the efficiency of the proposed in-network caching scheme.