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Recently, cloud services and cloud computing have revolutionized both academic research and industrial practices. A corresponding focus on how to improve the performance of cloud computing is growing apace. It is a significant approach to allocate virtual machines (VMs) on a set of physical machines. Computing resources can be utilized effectively with the optimal distribution of the virtual machines...
Recently, the trend of Cloud Computing has become a significant impact for IT departments and forms many innovative services by virtualization. Virtual systems have been used and identified on services of different fields nowadays. IT hardware manufacturers such as HP, IBM, Dell, etc..., put a large amount of investments on enterprise server products to support the virtualization environment. Service...
Cloud computing delivery model can significantly reduce enterprise IT costs and complexities. This technology can handle the rapidly gowning environment and provide more flexible resources sharing and hence it has become as anew information technology infrastructure recently. In contrast to traditional enterprise IT solution, cloud computing moves the application software and databases to the servers...
Media streaming is an important Internet application and has received more and more attention in recent years. Traditional media streaming systems are deployed in a server-client mode which scales poorly with the increasing population of the clients. Peer-to-peer media streaming can greatly enhance the scalability of the system by employing the clients to help forward the media content. In this paper,...
Peer-to-peer overlay networks are widely used in distributed systems. Based on whether a regular topology is maintained among peers, peer-to-peer networks can be divided into two categories: structured peer-to-peer networks in which peers are connected by a regular topology, and unstructured peer-to-peer networks in which the topology is arbitrary. Structured peer-to-peer networks usually can provide...
In contrast to peer-to-peer (P2P) file sharing, video-on-demand (VoD) streaming technology over P2P network is still awaiting breakthrough. The demands on scalability, playback deadlines for all peer nodes and playback continuity under a dynamic peer join/leave situation in a lossy P2P network are the major challenges for deploying a P2P based VoD system. In this paper an efficient weight-based caching...
Network coding is a promising enhancement of routing to improve network throughput and provide high reliability. It allows a node to generate output messages by encoding its received messages. Peer-to-peer networks are a perfect place to apply network coding due to two reasons: the topology of a peer-to-peer network is constructed arbitrarily, thus it is easy to tailor the topology to facilitate network...
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