Opportunistic off-path content discovery in information-centric networks
Opportunistic off-path content discovery in information-centric networks
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DOI：
10.1109/lanman.2016.7548860
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发表时间：
2016-06
期刊：
影响因子：
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通讯作者：
Onur Ascigil;Vasilis Sourlas;I. Psaras;G. Pavlou
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文献类型：
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作者：
Onur Ascigil;Vasilis Sourlas;I. Psaras;G. Pavlou
最近在信息中心网络的研究已经考虑了各种方法来发现网络的缓存使能节点中的内容。仅举几例，这样的方法包括范围泛洪和部署控制平面协议以在网络中散布该高速缓存内容。在这项工作中，我们考虑一个机会主义的方法，使用留下的痕迹从内容源的数据包的来源，以发现偏离路径缓存的内容。我们评估我们的方法使用ISP拓扑结构的各种系统参数。我们提出了两个新的转发策略建立在我们的方法之上。我们的研究结果表明，机会发现机制可以显着增加缓存命中率相比，NDN的默认转发策略，同时限制在可接受的水平的开销。
Recent research in Information-Centric Networks has considered various approaches for discovering content in the cache-enabled nodes of the network. Such approaches include scoped flooding and deploying a control plane protocol to disseminate the cache contents in the network, to name a few. In this work, we consider an opportunistic approach that uses trails left behind by data packets from the content origin to the sources in order to discover off-path cached content. We evaluate our approach using an ISP topology for various system parameters. We propose two new forwarding strategies built on top of our approach. Our results indicate that the opportunistic discovery mechanism can significantly increase cache hit rate compared to NDN's default forwarding strategy, while limiting the overhead at acceptable levels.