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Efficient swarming behaviours within peer-to-peer networks are hindered by imprecise or incorrect metadata content. Once published, metadata corrections can only be effected by a complete republish/swarm recreation or for each peer to manually make corrections (causing them to leave the swarm, decreasing performance). This work presents an approach which enables a swarm to collaboratively upgrade...
Small playback lag in live streaming is important for time-critical and interactive applications such as live stock, market updates, sports and remote education. In this paper, we present Elite addresses the playback lag problem in peer-assisted live streaming systems. Instead of deploying a large initial offset to all the users, Elite seeks the possibility of initializing users with layered proportional...
Traditional peer-to-peer live streaming systems usually have one specific streaming rate for one single channel. However, with the terminals diversifying, especially smart mobile phones bursting, the desire for multi-rates from one single channel topology of P2P live streaming becomes urgent, while considering that the network environments and topologies always change momentarily. High rate stream...
In order to effectively improve the success rate of transactions among nodes of p2p patch distribution system, this trust model was introduced to the p2p patch distribution system, the design of trust model was given and the specific implementation of each module was described in detail, finally the performance of trust model achieved were tested.
The increasing demand for value added services is a driver for telecommunication companies to find simple and cost efficient solutions for automated service creation, as bespoke service development for small customer groups is not economically viable. The aim of this paper is to propose a peer-to-peer based environment that supports deployment and discovery of value-added services. The identified...
In this paper, we propose a new Time-Driven Mesh (TDM) overlay network for peer-to-peer video-on-demand systems. In our TDM, all of the peers construct a mesh network connected among them in chronological order of their playback starting times. In order to efficiently search multiple streaming suppliers, we manage the playback starting time and the network location information for all of the peers...
The number and popularity of applications developed over the Peer-to-Peer (P2P) network paradigm has been growing over the last decade, some of which are dedicated to streaming multimedia content. To deceive traffic shaping mechanisms or improve the security of the communications, these applications generate encrypted traffic or resort to several obfuscation techniques, making it difficult to manage...
Nowadays, the majority share of the Internet traffic is contributed by video streaming services. Due to the growth of Internet bandwidth, it is possible to provide HD live streaming services on the Internet which will be a trend in the near future. As the population of the users of HD live streaming services increases, the bandwidth will become a problem again. Centralized-based systems are not suitable...
Multiplayer Online Games (MOG) in-game advertisements require dynamic delivery of large images for potentially hundreds of concurrent users. We present an approach for a scalable advertisement image delivery mechanism using the BitTorrent Peer-to-Peer (P2P) protocol. Simulations were conducted comparing a client-server model and our proposed model, where each MOG player acts as a P2P node in the overall...
Unstructured BitTorrent-like Peer-to-Peer networks have been extensively studied as an important enabling technology for Video-on-Demand. While most studies maintain the pull-based nature of unstructured Peer-to-Peer networks, recent ones are investigating the combination of pull and push operations. The goal of the proposed push/pull protocols is to make more effcient use of the available bandwidth,...
This paper presents the design of a platform for distribution of multimedia content streams supported through innovative techniques, both in terms of media encoding and media distribution. The platform architecture accommodates the use of scalable media coding techniques, including both standard and state of the art research methods (wavelets, multiple description coding), combined with new transport...
A core issue that confronts peer-to-peer streaming media application is to efficiently schedule the propagation of data segment. This paper presents a peer-to-peer scheme based on principal-agent model (PAM) that some peers play the role of agent, to gather the information of principal peers in its local physical network, which can be used to optimizing of data scheduling. We designs and implements...
Peer-to-Peer (P2P) media streaming networks have attracted significant research interest recently. However, it is challenging to design live P2P media streaming systems because of the stringent time constraints on the delivered media streams, which require more efficient and resilient overlay. In this paper, we focus on live P2P media streaming networks, a promising application flourishing in the...
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,...
Networked virtual environments are increasingly used for collaboration tasks and other interactive applications. While the graphics in such virtual worlds are usually three-dimensional, interactive 3D voice support is still in its infancy. Here we describe our demonstration system that supports P2P-based positional audio and interactive voice communication with the SecondLife platform.
Peer-to-peer (P2P) on-demand streaming systems inevitably suffer from peers churn that is the inherent dynamic characteristic of overlay network. With frequent peer departure, a large amount of media data cached on peer disk turns offline and unavailable, which becomes the major reason of heavy server load. To address the above issue, a new proactive data replication mechanism is proposed and implemented...
Users in a Peer-to-Peer Video on Demand (P2P VoD) system are allowed to watch any video file at any point in time and to use VCR operations like fast forward, rewind and pause at any time, which decreases their ability to help each other and offload the server. Encouraging peers to stay in the system longer and share the video files they have downloaded completely can greatly increase peers' cooperation...
Recently, media streaming applications called as data-driven approaches have attracted a lot of attention. In these applications, node independently selects its neighbors and obtains desirable blocks from neighbors. There are two steps in the applications. One is overlay construction, another is block scheduling. However, most of the related research works focused on the former issue, few concentrated...
In this paper we describe the NFC-based multimodal social media application Hot in the City. This application allows users to make friends by touching other users' NFC devices through the peer-to-peer mode. Users can also inform friends of their current location by touching hotspot tags. This study describes the three NFC modes in detail and delineates what kind of impact NFC has had in the creation...
Peer-to-peer media streaming is a scalable way to multicast real-time contents toward a large number of peers. In multi-stream streaming systems such as P2PTV, peers continuously switch between media streams at a high rate. This leads to data loss, data propagation delay, and overlay reconstruction. In this paper, we propose a mechanism to make a multi-stream peer-to-peer media streaming system resilient...
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