Providing Information Resilience Through Modularity-Based Caching in Perturbed Information-Centric Networks
Providing Information Resilience Through Modularity-Based Caching in Perturbed Information-Centric Networks
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DOI：
10.23919/itc.2017.8064358
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发表时间：
2017-09
期刊：
影响因子：
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通讯作者：
W. Chai;Vasilis Sourlas;G. Pavlou
中科院分区：
文献类型：
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作者：
W. Chai;Vasilis Sourlas;G. Pavlou
在本文中，我们研究了提供一种新的弹性形式，即信息弹性-目标是在正常和不利的网络条件下信息的可靠通信。我们利用了信息中心网络（ICN）范式的强大功能和灵活性，在这种范式中，内容被命名并可以被明确地标识，这与当前以主机为中心的Internet相反。利用ICN原理，提出了一种新的基于模块化的信息缓存方法，该方法利用模块化的概念，增强了信息的可达性和持久性，特别是在受干扰的网络场景下，例如，由于自然灾害或网络受到恶意攻击而导致的网络故障。我们的建议的主要思想是利用网络中特定社区结构内节点更好的连通性来提供更高的信息多样性，从而在各种网络动态下允许潜在访问更多数量的信息对象。我们基于真实和模型网络拓扑进行了广泛的模拟，并表明我们的建议可以显著提高不同系统参数下高动态网络场景（即多重扰动下的网络）的请求满意度。
In this paper, we investigate the provision of a new form of resilience, namely information resilience - targeting reliable communication of information under normal and adverse network conditions. We harness the power and flexibility of information-centric networking (ICN) paradigm where content are named and can be explicitly identified as opposed to the current host-centric Internet. Using ICN principles, a new modularity-based information caching approach is proposed that leverages the concept of modularity such that information reachability and persistency are enhanced especially under perturbed network scenarios, e.g., network failures due to natural disasters or network under malicious attacks. The main idea of our proposal is to exploit the better connectivity of nodes within certain community construct in a network to provide higher information diversity, and thus allow potential access to a higher number of information objects even under various network dynamics. We conduct extensive simulations based on both real and model network topologies and show that our proposal can significantly increase request satisfaction ratios under highly dynamic network scenarios (i.e., network under multiple perturbations) across different system parameters.