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Popularity-Based Caching Strategies for Content Centric Networking

Abstract : Content Centric Networking (CCN) is a new architecture for a future Internet. CCN includes in-network caching capabilities at every node. Its effciency depends drastically on performances of caching strategies. A lot of studies proposing new caching strategies to improve the performances of CCN. However, among all these strategies, it is still unclear which one performs better as there is a lack of common environment to compare these strategies. In this thesis, we address the challenge of selecting the best caching strategies for CCN. The contribution of this thesis are the following. We build a common evaluation scenario and we compare via simulation the state of the art caching strategies: Leave Copy Everywhere (LCE), Leave Copy Down (LCD), ProbCache, Cache "Less" For More and MAGIC. We analyze the performance of all the strategies in terms of Cache Hit, Stretch, Diversity and Complexity, and determine the cache strategy that fits the best with every scenario. Later on, we propose two novel caching strategies for CCN based on popularity. First, we study popularity of content and we present Most Popular Caching (MPC) strategy. MPC privileges distribution of popular caches into the caches and thus, it overcomes other caching strategies. Second, we present an alternative caching strategy based on social networks: Socially-Aware Caching Strategy (SACS). SACS privileges distribution of content published by influential users into the network. Both caching strategies overcome state of the art mechanisms and, to the best of our knowledge, we are the first to use social information to build caching strategies
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Submitted on : Thursday, March 29, 2018 - 1:27:41 PM
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César Bernardini. Popularity-Based Caching Strategies for Content Centric Networking. Other [cs.OH]. Université de Lorraine, 2015. English. ⟨NNT : 2015LORR0121⟩. ⟨tel-01751828⟩



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