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Current video on demand system requires a large number of users and a huge number of video files, then mounts of concurrent address on media server will burst the bandwidth requirements and content provider will pay more and more cost on it. Accordingly, new schemes to offload burden from media server becomes a crucial item. In this paper, we introduce a new topology based on two hierarchical DHT...
With the increasing Internet demands, there is a huge research going on in the field of Peer-to-Peer Multimedia Streaming systems. In this work, an analysis has been made on several solutions and techniques by exploring different aspects in the domain of Peer-to-Peer Multimedia Streaming. Particularly we have concentrated on the objective to guide and motivate the ongoing research in a better direction...
Recently video-on-demand (VoD) has become a popular Internet application due to its promising usage in a variety of Internet-based services. However, it remains a challenging problem to provide scalable and fluent VoD services over Internet especially when including VCR operations into VoD service. Supporting user interactivities such as random seek, rewind and fast forward is desirable while these...
Multimedia streaming has a tendency to become more and more popular. Many researches focused on this issue, and many peer-to-peer streaming systems were been published. In this paper, we proposed a networked VCR service for live multimedia streaming, called P2PVR. P2PVR treats the entire P2P overlay as a large disk and utilize the storage resource at each participant. P2PVR can support both live streaming...
The current peer-to-peer (P2P) live streaming networks can be generally classified into two categories: tree-based and data-driven. The tree-based approach suffers from three limitations: interruptive delivery due to failures of high level nodes, unfair uploading (out-going) bandwidth utilization in leaf nodes and bandwidth bottleneck in nodes near the root. The data driven approach has been widely...
Multicast conferencing is a rapidly-growing area of Internet use. Audio, video and other media such as shared whiteboard data can be distributed efficiently between groups of conference participants using multicast algorithms that minimize the amount of traffic sent over the network. This is far more effective than systems that maintain a separate link between each participant. On the other hand Peer-to-Peer...
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...
Caching management strategy is a main research aspect for on-demand streaming system on peer-to-peer network. In this paper, we propose a CORPC caching management scheme, which defines a best suitable caching capacity for chunkpsilas replicas. Based on replica capacity, chunk popularity and peer capacity, CORPC scheme adopts heuristic greedy algorithm to implement cache admission control and replacement...
Sharing multimedia contents in peer-to-peer (P2P) networks has become a common practice. In general, it is done in "download" mode as any other type of data. However, multimedia data present another more convenient consumption mode which is the "streaming" mode: rather than downloading the entire data before viewing it, a stream is initiated from the source peer to the destination...
A post-payment copyright system is used to legalize copyrighted music files which user has obtained illegally. We compare a post-payment copyright system to an online music shop by analyzing three scenarios using techno-economic modeling and risk analysis. According to our analysis, a post-payment copyright system is potentially a more profitable business than an online shop when no media replacement...
In this paper, we present an effective approach for live media streaming based on BitTorrent mechanism. In the approach, several modifications have been incorporated into BitTorrent to support on-time content delivery. First, pieces are selected based on their scheduler play back deadline. Second, source behaves in a push-based way instead of pull-based way. Finally, each peer periodically examines...
In recent years, due to the rise in crime, growing numbers of governments, companies, and schools are equipping their facilities with security cameras to deter crime and to investigate crimes that have happened. In this study, we investigate a distributed application that provides an efficient access method for security cameras placed in various areas. Peer-to-peer is a suitable technology for such...
The peer-to-peer solution provides a service model that is attractive for video-on-demand (VOD). The key idea of using P2P technology is to aggregate storage and bandwidths capacity of peers to alleviate workload on the source server. Compared with P2P live streaming, it is much more challenge for VOD due to peers' asynchronous request, different interested portion and support for VCR-like operation...
Aiming at the problem of how to efficiently manage and use cache content in P2P VoD system, a distributed cache management model (DCMM) for P2P VoD is proposed. In the model, peers distributed cache management model for P2P VoD systems whose caching media segments integrate a full program are organized into a ring. Any segment of a specific program can be found quickly within a ring. With the concept...
SIP-based systems inherently have NAT traversal and QoS problems because of the limited IPV4 addresses and the best-effort service on the Internet. Using relay server to relay media stream can solve NAT traversal in SIP systems, but have less scalability. In this paper, we propose a SIP+P2P architecture for SIP-based systems to solve the above problems. In this novel architecture, light weighted SIP...
The increasing assortment of devices with IP connectivity contributes to the high popularity of video sharing over the Internet. High traffic generated by such applications at the source can be better distributed using a peer-to-peer overlay, since every user forwards information to other users. Current implementations target either live or on demand video streaming. LiveShift is an application that...
In peer-to-peer (P2P) and overlay network environments, digital multimedia is allowed to be freely copied, shared and disseminated in a decentralized manner. Such environments do not guarantee authentication or preservation of the data. Furthermore, if the multimedia data, particularly video, images, or audio, has been polluted during this sharing process, there are no decentralized mechanisms that...
Interactive 3D content on Internet has yet become popular due to its typically large volume and the limited network bandwidth. Progressive content transmission, or 3D streaming, thus is necessary to enable real-time content interactions. However, the heavy data and processing requirements of 3D streaming challenge the scalability of client-server delivery methods. We propose the use of peer-to-peer...
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