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To address the challenges raised by the Internet usage evolution over the last years, the Content-Centric Networking (CCN) has been proposed. One key feature provided by CCN to improve the efficiency of content delivery is the in-network caching, which has major impact on the system performance. In order to improve caching effectiveness in such systems, studying the functioning of CCN in-network storage...
It is a paradigm shift in internet architecture from receiver centric model to the information centric networking (ICN) model to improve the end-users' latency experience. With exponential increment in number of users and data volume, efficient usage of the nodes (caches) and content forwarding methodology are key issues in an ICN architecture. In ICN intra-domain routers have storage capacity and...
Peer-to-Peer (P2P) networks are distributed systems where no central authority rules the behavior of the individual peers. These systems rely on the voluntary participation of the peers to help each other and reduce congestion at the data servers. BitTorrent is a popular file-sharing P2P application originally designed for non real-time data. With minor modifications concerning the peer selection...
Peer-to-peer file sharing applications generate huge volumes of the Internet traffic, thus leading to increased congestion and costs for the ISPs, particularly due to inter-domain traffic. Thus, analysis of peer-to-peer applications and related optimization approaches (such as locality awareness or caching techniques) has been the subject of extensive recent research. In this paper we introduce and...
In this paper we model peer-to-peer systems where content may become unavailable. First, using Markov Chains we capture the impact of parameters such as the server upload rate and the popularity of the files on the performance of the system. Then, we show the applicability of our model to the problem of optimal bundling. Bundling files together, rather than disseminating them separately, is a possible...
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