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Television transmitted over IP (IPTV) presents numerous opportunities for users as well as service providers, and has attracted significant interest from business and research communities in recent years. Among the emerging IPTV delivery architectures, the peer-to-peer based delivery mechanism is considered attractive due to the relative ease of service deployment. However, the question of how well...
A P2PTV system allows users to watch live video streams redistributed by other users via a peer-to-peer (P2P) network. In an ideal world, each peer in a P2P network would be able to redistribute more bytes than it receives. A P2PTV system built from such peers can support a virtually unlimited number of peers; with only a single copy of content stream injected into the network, it can redistribute...
The dynamic topology of ad hoc networks is an important issue on which a lot of research is carried out. Because of higher speeds of movement and networks of larger scale, the algorithms of auto-organization and clustering may be inefficient. Therefore, we propose a fully distributed clustering algorithm for mobile ad hoc networks in which the nodes can move at higher speeds. The main objectives of...
Many distributed applications build overlays on top of the Internet. Several unsolved issues at the network layer can explain this trend to implement network services such as multicast, mobility and security at the application layer. On one hand, overlays creating basic topologies are usually limited in flexibility and scalability. On the other hand, overlays creating complex topologies require some...
Power conservation is a crucial problem in mobile ad hoc wireless networks knowing that, each mobile node has a limited amount of energy concentrated in a battery. The main objective of our paper is to use a variable transmission range in order to save some energy and to keep the connectivity of the network. Our algorithm is implemented at the data link layer of the OSI model and thus can be used...
The lack of resources in routers becomes a crucial issue with the deployment of state storing protocols such as QoS or multicast ones. In particular, single or any source multicast protocols most probably take over resources up to their limits for maintaining multicast tree information. The aim of this paper is to study the possibility and benefit of using multiple shortest paths in order for a new...
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