Download or read book Low latency and Robust Peer to peer Video Streaming written by JeongHun Noh and published by Stanford University. This book was released on 2010 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peer-to-peer (P2P) systems have emerged as a promising and cost-effective transport solution for streaming video to a group of users in the Internet. In the P2P architecture, users not only consume video, but also forward it to other users. Thus, P2P systems scale better than client-server systems as users bring resources to the system. The challenge is to achieve low-latency and robust video dissemination by overcoming a number of adversarial aspects and challenges -- peer dynamics, heterogeneous uplink bandwidth of peers, heterogeneous hardware and capabilities of peers, and peer-wise connection restrictions due to NATs/firewalls. This dissertation presents Stanford Peer-to-Peer Multicast (SPPM), a P2P video streaming system. SPPM is designed to achieve low-latency and robust streaming by constructing an overlay of multiple complementary trees and dynamically rearranging the position of peers by Active Overlay Management in a distributed fashion. Next, we extend SPPM for providing playback control to users by time-shifted streaming. To perform time-shifted streaming, peers store past portions of video and forward them to other users when requested, thereby reducing server load. To further alleviate server load, we propose fast prefetching, by which peers can disseminate content quickly. Finally, we present a way to accommodate mobile users. Video transcoding is often required to adapt video for the mobile users. We propose interleaved distributed transcoding (IDT), which allows a video stream to be transcoded at multiple peers that are more capable than mobile users. IDT is shown not only to reduce computation required at a peer but also to achieve higher error resilience in case of peer failure or packet loss.
Download or read book Low latency and Robust Peer to peer Video Streaming written by JeongHun Noh and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Peer-to-peer (P2P) systems have emerged as a promising and cost-effective transport solution for streaming video to a group of users in the Internet. In the P2P architecture, users not only consume video, but also forward it to other users. Thus, P2P systems scale better than client-server systems as users bring resources to the system. The challenge is to achieve low-latency and robust video dissemination by overcoming a number of adversarial aspects and challenges -- peer dynamics, heterogeneous uplink bandwidth of peers, heterogeneous hardware and capabilities of peers, and peer-wise connection restrictions due to NATs/firewalls. This dissertation presents Stanford Peer-to-Peer Multicast (SPPM), a P2P video streaming system. SPPM is designed to achieve low-latency and robust streaming by constructing an overlay of multiple complementary trees and dynamically rearranging the position of peers by Active Overlay Management in a distributed fashion. Next, we extend SPPM for providing playback control to users by time-shifted streaming. To perform time-shifted streaming, peers store past portions of video and forward them to other users when requested, thereby reducing server load. To further alleviate server load, we propose fast prefetching, by which peers can disseminate content quickly. Finally, we present a way to accommodate mobile users. Video transcoding is often required to adapt video for the mobile users. We propose interleaved distributed transcoding (IDT), which allows a video stream to be transcoded at multiple peers that are more capable than mobile users. IDT is shown not only to reduce computation required at a peer but also to achieve higher error resilience in case of peer failure or packet loss.
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.
Download or read book Multimedia Cloud Computing Systems written by Mohsen Amini Salehi and published by Springer Nature. This book was released on 2021-11-03 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second generation of cloud computing systems, known as domain-specific clouds, are emerging based on application-specific processors and serverless computing paradigm. As multimedia streaming services are increasingly growing in popularity and diversity, this book is authored to introduce “multimedia clouds” as a domain-specific cloud that operates in the intersection of cloud computing technologies and digital media streaming. The book concentrates on the architectural aspects of multimedia clouds and describes development of high-level abstractions that will mitigate the burden of programmers, cloud architects, and system administrators. Multimedia clouds not only democratize multimedia streaming and add flexibility to the streaming services, they also help stream providers to offer robust and reliable streaming services in a cost- and energy-efficient manner.
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 2007-10-25 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book describes novel solutions to enhance video quality, increase robustness to errors, and reduce end-to-end latency in video streaming systems. The authors are leading Researchers from Stanford University.
Download or read book Enterprise Information Systems written by Joaquim Filipe and published by Springer Nature. This book was released on with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Advances in Intelligent Information Hiding and Multimedia Signal Processing written by Jeng-Shyang Pan and published by Springer. This book was released on 2018-11-10 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features papers presented at IIH-MSP 2018, the 14th International Conference on Intelligent Information Hiding and Multimedia Signal Processing. The scope of IIH-MSP included information hiding and security, multimedia signal processing and networking, and bio-inspired multimedia technologies and systems. The book discusses subjects related to massive image/video compression and transmission for emerging networks, advances in speech and language processing, recent advances in information hiding and signal processing for audio and speech signals, intelligent distribution systems and applications, recent advances in security and privacy for multimodal network environments, multimedia signal processing, and machine learning. Presenting the latest research outcomes and findings, it is suitable for researchers and students who are interested in the corresponding fields. IIH-MSP 2018 was held in Sendai, Japan on 26–28 November 2018. It was hosted by Tohoku University and was co‐sponsored by the Fujian University of Technology in China, the Taiwan Association for Web Intelligence Consortium in Taiwan, and the Swinburne University of Technology in Australia, as well as the Fujian Provincial Key Laboratory of Big Data Mining and Applications (Fujian University of Technology) and the Harbin Institute of Technology Shenzhen Graduate School in China.
Download or read book Emerging Research on Networked Multimedia Communication Systems written by Kanellopoulos, Dimitris and published by IGI Global. This book was released on 2015-08-14 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: ###############################################################################################################################################################################################################################################################
Download or read book Robust Video Transmission Over Lossy Channels and Efficient Video Distribution Over Peer to peer Networks written by Jiajun Wang and published by . This book was released on 2008 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Low delay Robust Video Multicast written by Zhi Li and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Video multicast offers a scalable solution for large-scale television distribution. For commercial-grade video multicast services such as Internet Protocol Television (IPTV), it is often challenging to meet a set of conflicting design goals, including high video quality, low request response time and good system scalability. This dissertation addresses these issues by developing a decentralized peer-assistance architecture and integrating it with streaming-specific source and channel coding techniques to deliver multicast video in a timely, reliable and scalable way. Video quality is negatively affected by network packet loss. An existing framework to simultaneously address packet loss and request response delay is to combine multicast with a unicast service that provides both packet loss repair and fast stream startup functionalities. Typically, servers that provide the unicast service could become the system bottleneck. To mitigate this problem, we propose an alternative distributed solution to partially shift the burden of the unicast servers to receivers of the multicast. Using a Peer-Assisted Repair (PAR) protocol, we demonstrate that packet repairs can be delivered reliably on time using a combination of server-peer coordination and redundant repairs. PAR can be naturally extended to a Peer-Assisted Startup (PAS) protocol to facilitate fast stream startup, where a missing portion of the multicast stream is treated as a long erasure burst to be repaired. In these applications, we show that video transcoding can be seamlessly integrated to provide improved robustness to packet loss, reduced stream startup latency and improved system scalability. Erasure correcting coding plays an essential role in the peer-assistance architecture. To understand how to mitigate its delay into the stream startup process, we explore the design of erasure correcting codes that takes into account a decoding delay constraint. Modeling the peer-assisted unicast service as communication over a set of parallel links, we propose a practical construction of parallel-link block erasure correcting code, where each source packet is decoded at the sink on-the-fly with a strict decoding deadline. The proposed code handles two types of common errors in the upper layers of packet-switched networks -- bursty packet loss and link outages. We further show that the proposed code construction is delay-optimal among all codes that achieve the Singleton bound. The proposed decentralized architecture requires in-network video transcoding at the multicast peer receivers, where it is often desirable to use a scheme with low complexity, such as open-loop requantization-based transcoding. A known drawback of this scheme is the requantization distortion drift problem. We develop an analytical model to capture the distortion drift effect and show that this drawback can be largely mitigated through parameter optimization. We demonstrate its effectiveness in the transcoded-to-primary stream switching problem in fast stream startup.
Download or read book ICT Innovations 2010 written by Marjan Gusev and published by Springer Science & Business Media. This book was released on 2011-03-01 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference, ICT Innovations 2010, held in Ohrid, Macedonia, in September 2010. The 33 revised papers presented together with 5 invited papers were carefully reviewed and selected. The papers address the following topics: internet applications and services, artificial intelligence, bioinformatics, internet, mobile and wireless technologies, multimedia information systems, computer networks, computer security, e-business, cryptography, high-performance-computing, social networks, e-government, as well as GPU computing.
Download or read book Principles of Distributed Systems written by James H. Anderson and published by Springer. This book was released on 2007-01-23 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed post-proceedings of the 9th International Conference on Principles of Distributed Systems, OPODIS 2005, held in Pisa, Italy in December 2005. The volume presents 30 revised full papers and abstracts of 2 invited talks. The papers are organized in topical sections on nonblocking synchronization, fault-tolerant broadcast and consensus, self-stabilizing systems, peer-to-peer systems and collaborative environments, sensor networks and mobile computing, security and verification, real-time systems, and peer-to-peer systems.
Download or read book RMesh written by Yui-tung Li and published by . This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distributed Network and Spatial Protocols on Big Data written by Wenbin Tang and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Distributed Network and Spatial Protocols on Big Data" by Wenbin, Tang, 唐文斌, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: We consider the video-on-demand (VoD) streaming problem in a Peer-to-Peer (P2P) network in a decentralized model, in which peers have no global information about the network. Assuming that only one server has all the chunks, the objective is to stream M chunks to N peers in the network such that small latency and good fluency are achieved by all peers. We design a simple and decentralized protocol in which each peer maintains a constant number of neighbors and only need to communicate with one of them chosen uniformly at random every time. Moreover, the maximum number of communications established on each peer every time is also bounded by a constant. Our theoretical analysis for the model guarantees that the latency of each peer in our protocol is at most O(〖log〗 DEGREES2 N), which is an O(logN) approximation of any optimal protocol. Moreover, we provide non-trivial upper and lower bounds related to the communication details, which give key insights as to why our simple protocol achieves almost-optimal performance. We also show by experiment that even under the setting of bounded connection, bounded transmission and decentralization, our protocol ensures that almost all peers in the dynamic P2P VoD network can achieve low latency and good fluency in different kinds of network topologies. In our protocol, peers' benefits are not compromised too much when they behave unselfishly by disseminating their neighbors' downloading requests, which is very important in real world application. Experiment shows that our protocol is robust against selfish peers who block their up-streams: similar performance can be maintained under the existence of (a small fraction of) selfish peers. In the Big Trajectory Data Join problem, we develop a novel bounding technique, which enables trajectories to be pruned significantly. We further design a fast sweep line algorithm with rectangle bound for each trajectory as the heuristic information, which can be used to improve the query efficiency. Subjects: Distributed databases Video-on-demand Peer-to-peer architecture (Computer networks)
Download or read book Multimedia Networking and Coding written by Farrugia, Reuben A. and published by IGI Global. This book was released on 2012-12-31 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in multimedia communication systems have enhanced the need for improved video coding standards. Due to the inherent nature of video content, large bandwidths and reliable communication links are required to ensure a satisfactory level of quality experience; inspiring industry and research communities to concentrate their efforts in this emerging research area. Multimedia Networking and Coding covers widespread knowledge and research as well as innovative applications in multimedia communication systems. This book highlights recent techniques that can evolve into future multimedia communication systems, also showing experimental results from systems and applications.
Download or read book Internet of Things Smart Spaces and Next Generation Networks and Systems written by Sergey Balandin and published by Springer. This book was released on 2015-08-12 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the joint refereed proceedings of the 15th International Conference on Next Generation Wired/Wireless Advanced Networks and Systems, NEW2AN 2015, and the 8th Conference on Internet of Things and Smart Spaces, ruSMART 2015, held in St. Petersburg, Russia, in August 2015. The 74 revised full papers were carefully reviewed and selected from numerous submissions. The 15 papers selected for ruSMART are organized in topical sections on IoT infrastructure, IoT platforms, smart spaces and IoT cases, and smart services and solutions. The 59 papers from NEW2AN deal with the following topics: streaming, video, and TCP applications, mobile "ad hoc" networks, security, and clouds, sensor networks and IoT, cellular systems, novel systems and techniques, business and services, signals and circuits, optical and satellite systems, and advanced materials and their properties.
