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This paper proposes a collaborative in-network caching method for multi-path routing. In-network caching allows routers in networks to store contents in their caches and users can download the contents from the routers in addition to content servers. In such a situation, the proposed method introduces a joint optimization problem of in-network caching and multi-path routing, which is formulated as...
The switch in video delivery from traditional medium to Over-The-Top (OTT) based services has been a game changer for stakeholders of the media delivery ecosystem. It has changed the value chain enabling Content Delivery Networks and Content Providers to take the lion's share at the expense of Internet/Network Service Providers. Even if establishing collaboration between them naturally appears as...
The social media has changed our way of communication and sharing data in the Internet. They are based on the collaboration of the members to provide and exchange information. Their efficiency motivates researchers to design novel architectures based on the social behavior of the users. We study in this paper the combination of the social computing and the P2P systems. We propose ROUTIL: a P2P routing...
Information-Centric Networking (ICN) enables caching of addressable content chunks in every cache-equipped router. So it is crucial to make the cached content to be visible locally, in order to satisfy the subsequent request. We achieve this goal in this paper with a novel caching scheme, which combines the content placement with dynamic request routing by selectively creating trails along the content...
Content Centric Networking (CCN) is a new emerging network architecture, shifting from an end-to-end connection to a content-centric communication model. A number of content-oriented characteristics, such as name-based routing, arbitrary topology and ubiquitous caching make caching in CCN different from the previous works. In this paper, we focus on the collaborative caching in CCN and propose a dominating-set-based...
Privacy is one of the main concerns for Internet users. In many situations, users would like to conceal their identities when accessing the Internet. Some would want to hide their identities when accessing specific services, and others may even want to be anonymous to other hosts they are communicating with. Anonymity is sometimes a must for applications like electronic voting, and in other situations...
In this paper, we present a concept for developing applications that allow users to work synchronously together while being able to use asynchronous features, such as work resumption from any point in time. Therefore, we formulate abstract requirements for a protocol realizing the introduced approach. Furthermore, an architecture for deployment is outlined. We show three different applications - all...
Massive content delivery in metropolitan networks has recently gained much attention with the successful deployment of commercial systems and an increasing user popularity. With an enormous volume of content available in the network, as well as the growing size of content owing to the popularity of high-definition video, the exploration of capacity in the caching network becomes a critical issue in...
Consider the lack of cache and serve time-delay in the media streaming system, a proxy-caching scheduler based on P2P cooperation (PCSPC) is raised. First according to the principle of more popularly data assigned more cache, we distribute corresponding cache to every media file's prefix by its popularity. Then we sort prefix sequence in ascending order and proxy sequence in descending order by transmission...
The main contribution of this article is to propose a collaborative and distributed cache mechanism tailored for ad hoc networks. Each node's cache is partitioned into a shared area and a private area. The proposed collaborative cache is formed by each node's shared area, which is used to store contents relevant to the group, while the private area is used to store information relevant to its owner...
Collaborative applications, such as videoconferencing systems, allow communication partners to interact and communicate anytime and anywhere over the Internet. Today, such applications require central servers for various functions. Even decentralized peer-to-peer (P2P) systems still require servers for the invitation and localization of users. The session initiation protocol (SIP) is usually used...
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