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Author : Fangming Liu
Publisher :
ISBN 13 :
Total Pages : 143 pages
Book Rating : 4.:/5 (728 download)
Download or read book Large-scale Peer-assisted Online Hosting, Distribution and Video Streaming Systems written by Fangming Liu and published by . This book was released on 2011 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fangming Liu
Publisher :
ISBN 13 : 9783330009585
Total Pages : 168 pages
Book Rating : 4.0/5 (95 download)
Download or read book Large-Scale Peer-Assisted Online Hosting, Distribution and Video Streaming Systems written by Fangming Liu and published by . This book was released on 2019-04 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fei Chen
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (112 download)
Download or read book A Study of Cloud-assisted Strategy for Large Scale Video Streaming Systems written by Fei Chen and published by . This book was released on 2014 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the Internet has witnessed a significant increase in the popularity of video streaming systems for Video-on-Demand (VoD) or live streaming services. The large-scale content distribution of these systems has become increasingly prevalent and contributes to a significant portion of Internet traffic. Designing such a large scale, fast growing video streaming platform with high availability and scalability is technically challenging. Traditionally, it requires either a massive and costly computation, storage and network delivery infrastructure, or a peer-to-peer (P2P) strategy, which deploys local resources of participating users. To make it worse, the servers usually have to be over-provisioned for the peak load to serve the heterogeneous and dynamic user demands in a large scale with guaranteed Quality of Service (QoS). The emergence of cloud computing however sheds new lights into this dilemma. A cloud platform offers reliable, elastic and cost-effective resource provisioning, which has been dramatically changing the way of enabling scalable and dynamic network services for large scale video streaming systems. First, cloud computing can provide an elastic service and scale the provisioned server resource online in a fine granularity. Second, the geo-distributed cloud sites can respond to the globalized request demands with the qualified service. Third, the cloud-assisted strategy is highly compatible with current prevalent P2P video streaming systems in a hybrid solution. Therefore, the cloud-assisted strategies for large scale video streaming systems call for the novel solutions to provide the cost-effective services. In this thesis, we tackle the design issues of cloud-assisted strategies. First, we propose a flexible cloud based provisioning strategy to serve highly time-varying demands in the P2P VoD systems. Then, leveraging the geo-distributed cloud services, we build a prototype of crowdsourced live streaming platform and explore the streaming quality under the influence of different cloud site leasing strategies. Synergizing the P2P and cloud resource, we model the combinational cost problem, and present an optimal solution and a distributed solution toward a scalable and cost effective service over the hybrid VoD streaming systems. Our analysis and experimental results demonstrate the superiority of proposed systematic solutions for the large scale video streaming systems.
Author : Zimu Liu
Publisher :
ISBN 13 : 9780494675472
Total Pages : 0 pages
Book Rating : 4.6/5 (754 download)
Download or read book Measurements on Large-scale Peer-assisted Live Streaming written by Zimu Liu and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In large-scale peer-assisted live streaming systems with hundreds of online channels, it becomes critically important to investigate the lifetime pattern of streaming sessions to have a better understanding of peer dynamics. Aiming to improve performance of the P2P streaming systems, the goal of this thesis is twofold: (1) for popular channels, we wish to identify superior peers, that contribute a higher percentage of upload capacities and stay for a longer period of time; (2) for unpopular channels, we seek to explore factors that affect the peer instability. Utilizing more than 130 GB worth of run-time traces from a large-scale real-world live streaming system, UUSee, we conduct a comprehensive and in-depth statistical analysis. Using survival analysis techniques, we discover critical factors that may influence the longevity. Based on the Cox regression models we built, we also discuss several interesting insights from our measurement results.
Author : Eric Setton
Publisher : Springer Science & Business Media
ISBN 13 : 0387741151
Total Pages : 157 pages
Book Rating : 4.3/5 (877 download)
Download or read book Peer-to-Peer Video Streaming written by Eric Setton and published by Springer Science & Business Media. This book was released on 2007-09-30 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peer-to-Peer Video Streaming describes novel solutions to enhance video quality, increase robustness to errors, and reduce end-to-end latency in video streaming systems. This book will be of use to both academics and professionals as it presents thorough coverage and solutions for current issues with Video Streaming and Peer-to-Peer architectures. The book provides an overview of today’s state-of-the art video streaming technology. It presents adaptive video coding and streaming techniques for performance enhancement of conventional client-server systems and P2P multicast. The detailed appendix incorporates various additional experiments.
Author : Jack Lee
Publisher : John Wiley & Sons
ISBN 13 : 0470857641
Total Pages : 394 pages
Book Rating : 4.4/5 (78 download)
Download or read book Scalable Continuous Media Streaming Systems written by Jack Lee and published by John Wiley & Sons. This book was released on 2005-11-01 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous media streaming systems will shape the future of information infrastructure. The challenge is to design systems and networks capable of supporting millions of concurrent users. Key to this is the integration of fault-tolerant mechanisms to prevent individual component failures from disrupting systems operations. These are just some of the hurdles that need to be overcome before large-scale continuous media services such as video-on-demand can be deployed with maximum efficiency. The author places the subject in context, drawing together findings from the past decade of research whilst examining the technology’s present status and its future potential. The approach adopted is comprehensive, covering topics – notably the scalability and fault-tolerance issues - that previously have not been treated in depth. Provides an accessible introduction to the technology, presenting the basic principles for media streaming system design, focusing on the need for the correct and timely delivery of data. Explores the use of parallel server architectures to tackle the two key challenges of scalability and fault-tolerance. Investigates the use of network multicast streaming algorithms to further increase the scalability of very-large-scale media streaming systems. Illustrates all findings using real-world examples and case studies gleaned from cutting-edge worldwide research. Combining theory and practice, this book will appeal to industry specialists working in content distribution in general and continuous media streaming in particular. The introductory materials and basic building blocks complemented by amply illustrated, more advanced coverage provide essential reading for senior undergraduates, postgraduates and researchers in these fields.
Author : Jiahua Wu
Publisher :
ISBN 13 : 9780494597033
Total Pages : 156 pages
Book Rating : 4.5/5 (97 download)
Download or read book On the Design of Peer-assisted Video-on-demand Systems written by Jiahua Wu and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peer-assisted Video-on-Demand (VoD) systems have not only received substantial recent research attention, but also been implemented and deployed with success in large-scale real-world streaming systems. Despite the remarkable popularity in real-world systems, the design of such systems are not well understood. In this thesis, we seek to address two design problems in peer-assisted VoD systems. First, we focus on the design of cache replacement algorithms. We construct an analytical framework based on dynamic programming, to help us form an in-depth understanding of optimal strategies to design cache replacement algorithms. Second, we shift our attention to the surplus upload bandwidth allocation problem in multi-channel systems. Through theoretical analysis and realistic simulations, we conclude that surplus upload bandwidth from peers can be utilized more efficiently than conventional prefetching strategies when it is devoted to redistributing content to those channels in deficit state.
Author : Kokula Krishna Hari K
Publisher : Association of Scientists, Developers and Faculties (ASDF)
ISBN 13 : 8192986616
Total Pages : 257 pages
Book Rating : 4.1/5 (929 download)
Download or read book Proceedings of the International Conference on Systems, Science, Control, Communication, Engineering and Technology 2015 written by Kokula Krishna Hari K and published by Association of Scientists, Developers and Faculties (ASDF). This book was released on 2015-08-10 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: ICSSCCET 2015 will be the most comprehensive conference focused on the various aspects of advances in Systems, Science, Management, Medical Sciences, Communication, Engineering, Technology, Interdisciplinary Research Theory and Technology. This Conference provides a chance for academic and industry professionals to discuss recent progress in the area of Interdisciplinary Research Theory and Technology. Furthermore, we expect that the conference and its publications will be a trigger for further related research and technology improvements in this important subject. The goal of this conference is to bring together the researchers from academia and industry as well as practitioners to share ideas, problems and solutions relating to the multifaceted aspects of Interdisciplinary Research Theory and Technology.
Author : Al-Sakib Khan Pathan
Publisher : CRC Press
ISBN 13 : 1466507616
Total Pages : 606 pages
Book Rating : 4.4/5 (665 download)
Download or read book Building Next-Generation Converged Networks written by Al-Sakib Khan Pathan and published by CRC Press. This book was released on 2013-01-29 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplying a comprehensive introduction to next-generation networks, Building Next-Generation Converged Networks: Theory and Practice strikes a balance between how and why things work and how to make them work. It compiles recent advancements along with basic issues from the wide range of fields related to next generation networks. Containing the contributions of 56 industry experts and researchers from 16 different countries, the book presents relevant theoretical frameworks and the latest research. It investigates new technologies such as IPv6 over Low Power Wireless Personal Area Network (6LoWPAN) architectures, standards, mobility, and security. Presenting the material in a manner that entry-level readers can easily grasp the fundamentals, the book is organized into five parts: Multimedia Streaming—deals with multimedia streaming in networks of the future—from basics to more in-depth information for the experts Safety and Security in Networks—addresses the issues related to security, including fundamental Internet and cyber-security concepts that will be relevant in any future network Network Management and Traffic Engineering—includes coverage of mathematical modeling-based works Information Infrastructure and Cloud Computing—integrates information about past achievements, present conditions, and future expectations in information infrastructure-related areas Wireless Networking—touches on the various aspects of wireless networks and technologies The text includes coverage of Internet architectures and protocols, embedded systems and sensor networks, web services, Cloud technologies, and next-generation wireless networking. Reporting on the latest advancements in the field, it provides you with the understanding required to contribute towards the materialization of future networks. This book is suitable for graduate students, researchers, academics, industry practitioners working in the area of wired or wireless networking, and basically anyone who wants to improve his or her understanding of the topics related to next-generation networks.
Download or read book Architectures for Peer-to-peer Media Streaming in Large Scale Systems written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The distribution of substantial amounts of data to a large number of clients is a problem that is often tackled by peer-to-peer(P2P)architectures. Bottlenecks are alleviated by distributing the work of the server to all participating peers. Content is no longer passed directly from the server to all clients but only to a small subset of peers from where it is forwarded to a different subset of clients. These basic P2P ideas can also be applied to the distribution of live content, such as video streams. Additional timing constraints and bandwidth requirements of this application context lead to new challenges. Peer failures or late arriving packets directly infuence the user perception, which is not the case in simple file distribution scenarios. This thesis first analyzes some of the major problems faced by P2P live media streaming, and then presents a new architecture to address these challenges. Starting from a tree-based approach, the architecture is enhanced with adaptation algorithms to finally evolve in a mesh-based system. The in-depth analysis of tree-based architectures shows that it is important to adapt a node's position in the tree according to its bandwidth capacity. The same analysis is conducted for mesh-based architectures and it is shown that the position on the distribution path has a significant influence on performance. Another important problem concerns the fairness aspect in terms of collaborators and so-called "free-riders". A P2P system works best if all peers contribute with their resources. This can be ensured by tit-for-tat mechanisms where peers return as much as they get. In this thesis a new kind of tit-for-tat mechanism is developed to combine bandwidth contribution with robustness - the more bandwidth a peer provides the more robust its position on the path becomes.
Author : Le Chang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (883 download)
Download or read book Offering High-Definition Peer-Assisted Video On-Demand Systems written by Le Chang and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has witnessed the fast development of peer-assisted video ondemand (PA-VoD) systems, which have attracted millions of online users. The efforts on improving the quality of video programs have never ceased since the beginning, and nowadays offering high-definition (HD) channels has become a common practice. However, compared with standard-definition (SD) channels, HD channels have to sustain a higher streaming rate to peers, which is a challenging task. In real systems, HD channels often suffer from poor streaming quality, or impose a heavy burden on the servers. This thesis conducts an in-depth study on peer cache and upload bandwidth management at the same time for multi-channel PA-VoD systems, where HD and SD channels coexist with different bandwidth and cache requirements. The objective is to minimize the server bandwidth consumption, and thus the maintenance cost of VoD service providers. The solution is cross-channel allocation (or view-upload decoupling), i.e., making SD channels help HD viewers with the surplus peer-contributed resources. The management of these resources includes bandwidth allocation and caching strategies. We first propose a generic modeling framework to capture the essential characteristics of PA-VoD systems: the demand and supply of bandwidth from peers. Our modeling framework can be customized or extended to model a variety of caching strategies, including FIFO, passive caching, and active caching with different user behaviors. We then apply the modeling framework to two representative scenarios: stationary scenarios, where the channels have fixed popularity; and non-stationary scenarios, in which a new movie is released, and peers enter the channel in a flash-crowd manner. We prove using our models that passive caching is efficient for stationary user behaviors, and derive the optimal caching solutions when the channels in the system demonstrate different popularity evolutions, i.e., with non-stationary behaviors. With the insights gained from our modeling work, we design effective centralized heuristic algorithms and practical distributed strategies for peer cache replacement and upload bandwidth allocation, with a near-optimal utilization of these resources. We propose centralized and distributed cross-channel allocation, and also extend the substreaming technique from live streaming to VoD systems, where it demonstrates its extreme feasibility. Our extensive simulation results verify the efficacy of these heuristic and practical strategies.
Author : Jeffrey Alec Stanley Hinds
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (956 download)
Download or read book Real-time Video Streaming Using Peer-to-peer for Video Distribution written by Jeffrey Alec Stanley Hinds and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of the Internet has led to research and development of several new and useful applications including video streaming. Commercial experiments are underway to determine the feasibility of multimedia broadcasting using packet based data networks alongside traditional over-the-air broadcasting. Broadcasting companies are offering low cost or free versions of video content online to both guage and at the same time generate popularity. In addition to television broadcasting, video streaming is used in a number of application areas including video conferencing, telecommuting and long distance education. Large scale video streaming has not become as widespread or widely deployed as could be expected. The reason for this is the high bandwidth requirement (and thus high cost) associated with video data. Provision of a constant stream of video data on a medium to large scale typically consumes a significant amount of bandwidth. An effect of this is that encoding bit rates are lowered and consequently video quality is degraded resulting in even slower uptake rates for video streaming services. The aim of this dissertation is to investigate peer-to-peer streaming as a potential solution to this bandwidth problem. The proposed peer-to-peer based solution relies on end user co-operation for video data distribution. This approach is highly effective in reducing the outgoing bandwidth requirement for the video streaming server. End users redistribute received video chunks amongst their respective peers and in so doing increase the potential capacity of the entire network for supporting more clients. A secondary effect of such a system is that encoding capabilities (including higher encoding bit rates or encoding of additional sub-channels) can be enhanced. Peer-to-peer distribution enables any regular user to stream video to large streaming networks with many viewers. This research includes a detailed overview of the fields of video streaming and peer-to-peer networking. Techniques for optimal video preparation and data distribution were investigated. A variety of academic and commercial peer-to-peer based multimedia broadcasting systems were analysed as a means to further define and place the proposed implementation in context with respect to other peercasting implementations. A proof-of-concept of the proposed implementation was developed, mathematically analyzed and simulated in a typical deployment scenario. Analysis was carried out to predict simulation performance and as a form of design evaluation and verification. The analysis highlighted some critical areas which resulted in adaptations to the initial design as well as conditions under which performance can be guaranteed. A simulation of the proof-of-concept system was used to determine the extent of bandwidth savings for the video server. The aim of the simulations was to show that it is possible to encode and deliver video data in real time over a peer-to-peer network. The proposed system achieved expectations and showed significant bandwidth savings for a sustantially large video streaming audience. The implementation was able to encode video in real time and continually stream video packets on time to connected peers while continually supporting network growth by connecting additional peers (or stream viewers). The system performed well and showed good performance under typical real world restrictions on available bandwith capacity.
Author : Fleury, Martin
Publisher : IGI Global
ISBN 13 : 1466616148
Total Pages : 404 pages
Book Rating : 4.4/5 (666 download)
Download or read book Streaming Media with Peer-to-Peer Networks: Wireless Perspectives written by Fleury, Martin and published by IGI Global. This book was released on 2012-05-31 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of users who rely on the Internet to deliver multimedia content has grown significantly in recent years. As this consumer demand grows, so, too, does our dependency on a wireless and streaming infrastructure which delivers videos, podcasts, and other multimedia. Streaming Media with Peer-to-Peer Networks: Wireless Perspectives offers insights into current and future communication technologies for a converged Internet that promises soon to be dominated by multimedia applications, at least in terms of bandwidth consumption. The book will be of interest to industry managers, and will also serve as a valuable resource to students and researchers looking to grasp the dynamic issues surrounding video streaming and wireless network development.
Author : Md. Istiaque Shahriar
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)
Download or read book Modeling and Performance Analysis of Peer-to-Peer Live Streaming Systems written by Md. Istiaque Shahriar and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, Internet has witnessed a rapid growth in P2P (peer-to-peer) applications, especially, in the live streaming domain. There have been several deployments of largescale industrial level P2P live video systems, e.g., CoolStream, PPLive, Sopcast. Several contemporary measurement studies have verified that thousands of users can simultaneously participate in these systems. Almost all live P2P video systems offer multiple channels (e.g., PPLive can host over 100 channels). It is expected that in near future, live streaming systems with hundreds of user-generated channels will likely have thousands of live channels in total. With such a large number of streaming channels and huge number of participants, there are still some challenging issues needed to be addressed for an efficient P2P live streaming system. This PhD thesis is organized around three such problems related to the P2P live streaming systems. In the first research problem, our focus is on the Dedicated Channels used by a Small numbered Viewers (can be termed as DCSV channels for short) in a multi-channel live streaming system. Usually, these are user generated channels and they suffer adversely from poor channel performance, mainly, due to having a small number of participants. As a result, when a viewer of such a channel explicitly requests for a block of streaming content (commonly referred as a chunk), the probability that the chunk will be available among the existing viewers is less than it would be if the number of viewers was higher in that channel (e.g., viewers in a popular channel). We have proposed HnH (short for Hand-in-Hand), a novel scheme of cross-channel resource sharing, in order to solve the performance problem of DCSV channels due to their small number of viewers. We next develop a discrete-time stochastic model in order to analyze its efficiency. In the second research problem, we focus on the Free riders who only want to download and watch the streaming content from their neighboring peers but are unwilling to upload any content to their neighbors. The presence of free riders impose obstacle to the stability of any live streaming system because of consuming bandwidth from the system without significant contribution. We have investigated the performance of a Live streaming system with and without the presence of a free riders. First, we develop a discrete-time stochastic model and then compare the probability of continuous playback without any free rider and with certain amount of free riders. Next, we introduce a simple incentive mechanism and modify our stochastic model in order to accommodate the incentive mechanism. Then we compare the result of probability of continuous playback with and without having an incentive mechanism. Our work shows that presence of an incentive mechanism improves the overall system performance. In the third research problem, we focus on less motivated peers who are not interested to upload streaming contents to their neighbors if those contents are not from the channels they are watching. The context of this work is related to our first research problem where we have proposed the HnH scheme and for simplicity have considered that all the peers from all participating DCSV channels are motivated to cooperate. However, in practice, some of them may behave selfish and become less motivated to help peers from other channels. In this work, we investigate the performance of a HnH scheme based Live streaming system with and without the presence of less motivated peers. First, we develop a discrete-time stochastic model and then compare the probability of continuous playback without any selfish peer and with certain amount of selfish peers. Next, we introduce a simple incentive mechanism and modify our stochastic model accordingly. Finally, we compare the result of probability of continuous playback with and without incentive mechanism. Our work shows that presence of an incentive mechanism improves the over all system performance due to the fact that less motivated peers are motivated to cooperate more by the improved performance.
Author : Chen Feng
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book On Large-scale Peer-to-peer Streaming Systems written by Chen Feng and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fortino, Giancarlo
Publisher : IGI Global
ISBN 13 : 1466617950
Total Pages : 335 pages
Book Rating : 4.4/5 (666 download)
Download or read book Next Generation Content Delivery Infrastructures: Emerging Paradigms and Technologies written by Fortino, Giancarlo and published by IGI Global. This book was released on 2012-06-30 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book delivers state-of-the-art research on current and future Internet-based content delivery networking topics, bringing to the forefront novel problems that demand investigation"--
Author : Zhu, Ce
Publisher : IGI Global
ISBN 13 : 1616928336
Total Pages : 502 pages
Book Rating : 4.6/5 (169 download)
Download or read book Streaming Media Architectures, Techniques, and Applications: Recent Advances written by Zhu, Ce and published by IGI Global. This book was released on 2010-09-30 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book spans a number of interdependent and emerging topics in streaming media, offering a comprehensive collection of topics including media coding, wireless/mobile video, P2P media streaming, and applications of streaming media"--Provided by publisher.
