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In a P2P media streaming system, a centralized tracker server is always used to maintain the topology. However, sometimes the server becomes overloaded when too many clients are coming. Then, the response time is too long because of many frequent VCR operations and the tracker server cannot support large-scale users' requests. In this paper, a distributed tracker organization is designed to solve...
On providing multimedia streaming services such as live streaming, VoD, server-client model has been used. By the way, server-client model does not provide enough scalability and load concentration problems. Hence, there are several P2P solutions have been emerged. P2P-based streaming service can provide very high scalabilities and accommodate massive number of users simultaneously. In this paper,...
The peer-to-peer networking technologies and systems provide a rapid and scalable content distribution mechanism for the increasing client population to access an explosive volume of media files on the Internet. Whereas the BitTorrent protocol and its derivatives are the most popular peer-to-peer file sharing applications, this paper proposes the performance measurement and analysis of BitTorrent...
Currently P2P application is very popular for services such as file sharing, multimedia streaming, etc. With popularity of P2P application, peers participating P2P network have various capabilities and belong to heterogeneous network environments. Especially, explosively growing mobile device market trend makes heterogeneity problem of peer more serious. In order to handle the heterogeneity of peer,...
Many research activities have been provided to allow Session Initiation Protocol (SIP) based communication in Peer-to-Peer (P2P). We have contributed to these activities by proposing a scalable proxy topology building and routing in P2P SIP network where SIP location service is integrated in proxies that run over peer entities. Therefore as SIP cannot work efficiently through a NAT (Network Address...
Bee zone is a large-scale live video streaming system, which adopts dual-protocol-stack technology and gossip-like protocol to build an unstructured P2P application layer overlay, which can be used in IPv4/v6 hybrid network environment. We run the system during the 2010 FIFA World Cup South Africa. By collecting the logs from the system when it works, we study the workload, performance, and dynamics...
The rapid development of computer network has greatly popularized online education. Currently, most online education systems are using a learning platform of three-split screen courseware, in which stream media take up a majority of resources in bandwidth and storage space. Due to more and more students receiving online education, the load of stream media service is getting heavier, so that the traditional...
To solve the flux hedging in live streaming system, this paper proposes a new P2P live streaming architecture which includes a client side and a back-stage management system. Details design and implementation of key modules are also presented. Real case study shows that our system has less latency in broadcasting and better load balancing. It can realize better resource sharing among nodes and improve...
In this paper, we propose a P2P-based live streaming system called PcubeCast. Different from conventional P2P systems, PcubeCast utilizes servers to ensure end-user QoS. Thus, the proposed PcubeCast takes advantage of traditional systems: 1) Quality-of-Service(QoS) from client-server systems and 2) scalability and cost reduction from P2P systems. Through the experiments with real-world application...
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...
Over these recent years, research on P2P streaming media has become very popular. In order to enhance quality of play and to improve performance of transmission, a new P2P streaming media system mode, i.e. P2PSMCM, is proposed in this article. This model may enhance data memorizing and forwarding capability of the system based on network coding mechanism. It solves the problem of unbalance of multicast...
Multimedia streaming applications have disruptively occupied bandwidth in wire line Internet, yet today's fledging mobile media streaming still poses many challenges in efficient content distribution due to the form of mobile devices. At the same time, cloud computing is gaining power as a promising technology to transform IT industry and many eminent enterprises are developing their own cloud infrastructures...
As a superior approach for peer-to-peer (P2P) streaming live media, mesh-based overlay has made much success due to its potential scalability and ease of deployment. Peers in mesh streaming systems employ a swarming content delivery mechanism to exchange resources. However, the limited availability of new content heavily affects the quality of delivered stream. Aiming at leveraging and optimizing...
In this paper, we consider Peer-to-Peer Video on- Demand (P2P VoD) systems based on the Bit Torrent file sharing protocol. Since the rarest first policy adopted in the Bit Torrent protocol could not collect all pieces corresponding to a video file by their playback time, we need to develop a new piece selection rule particularly designed for P2P VoDs. In the proposed scheme, we assume the existence...
Introducing Peer-to-Peer (P2P) technology into IP Multimedia Subsystem (IMS) is hard but important, especially to the streaming media service. Based on the strength analysis of IMS and P2P, three solutions with the features of signaling centralized and media distributed are compared, and eventually the solution of managing P2P via application server is selected. For the purpose of reusing the public...
At present, streaming media service is one of the important application of the information technology. P2P network has played an important role in the distribution of large data flow of streaming media in application. In this paper, we propose a P2P streaming media data allocation algorithm, which is based on the importance degree of data block and buffer delay. It improves the traditional allocation...
P2P Streaming has a Real-time requirement. In the Mesh-based network, the bandwidth of fresh peers who join the network is insufficient because of lacking of data copy, and the Real-time requirement couldn't be satisfied. Therefore, the peers have to request media data from media server to satisfy the Real-time requirement which will consume a large amount of media server's bandwidth. In this paper,...
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...
The Peer-to-Peer streaming media transmission technology has become a hot spot of computer research field. This paper introduces the architecture of P2P streaming media transmission system based on neighborhood optimum selection, studies acquisition and transmission of streaming media data and lays stress on the neighborhood optimum selection. Various heterogeneous media resources will be collected...
The continuous growth in both commercial and public network traffic with various quality-of-service (QoS) requirements is calling for better service than the Internet's best effort mechanism. One of the challenging issues is to predict the overall behavior of aggregate network traffic. While network traffic characterization has been studied extensively due to its importance in network scheduling and...
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