A New Framework for H.264 Video Delivery Over Heterogeneous Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A New Framework for H.264 Video Delivery Over Heterogeneous Networks write by Ujwal G. Shirwadkar. This book was released on 2006. A New Framework for H.264 Video Delivery Over Heterogeneous Networks available in PDF, EPUB and Kindle. The diverse and changing nature of the service requirements among emerging Internet application calls for network architecture that is both flexible and able to distinguish among the needs of the application. In this thesis a new framework has been proposed which focuses on achieving an End-to-End Quality of Service for video traffic in a heterogeneous network. The core components of the framework are state-of-art H.264 codec, Differentiated network model and IEEE 802.lle protocol. H.264 standard was chosen due to its intrinsic ability to adapt to network delays and its average reduction in bit rate by up to 50% for similar encoders. DiffServ architecture provides mechanism for aggregate traffic and prioritized individual flow, that together can be used to build service with varying delay and loss behavior. The newly introduced IEEE 802.11e being the only protocol to support QoS in wireless was chosen to provide the mobile receivers with higher quality of delivered video. To construct this framework modification to functioning of ingress router is proposed since IP packets were assigned drop probabilities by ETBMS. The source marker marked the packets containing video slices (I,-P, B) and also assigned priorities to the packets. The framework also describes a Video Differentiator present in the access point which identifies and maps the video packets to corresponding IEEE 802.1 le prioritized video service queues. Using simulation, the proposed framework is verified by examining QoS parameters like peak signal to noise ratio, mean square error, end-to-end delay and Video quality metric (VQM). The results obtained from various simulations thus illustrate that the framework achieves its goal of guarantying endlto end QoS in a heterogeneous network.
Wired/Wireless Internet Communications
Wired/Wireless Internet Communications - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Wired/Wireless Internet Communications write by Xavier Masip-Bruin. This book was released on 2011-06-27. Wired/Wireless Internet Communications available in PDF, EPUB and Kindle. This book constitutes the proceedings of the 9th IFIP TC 6 International Conference on Wired/Wireless Internet Communications, WWIC 2011, held in Vilanova i la Geltrú, Spain, in June 2011. The 26 contributions included were carefully reviewed and selected from 50 submissions. In addition the book contains 15 invited papers. The contributions are structured in topical sections on mobility and LTE networks; performance and simulation analysis; adaptive approaches to guarantee E2E network services; energy efficiency and cooperation in wireless networks; transmission and management; quality through routing, naming and control; wireless multi-hop communications challenges in the future internet; and emerging contributions.
Converged Video Delivery Over Heterogeneous Networks
Converged Video Delivery Over Heterogeneous Networks - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Converged Video Delivery Over Heterogeneous Networks write by Amit Govind Limaye. This book was released on 2012. Converged Video Delivery Over Heterogeneous Networks available in PDF, EPUB and Kindle. Mobile traffic has grown substantially over the last few years; a trend which is expected to continue. The chief reasons behind this phenomenon are the availability of better handsets, faster cellular networks and the variety of content available on the internet suitable for consumption on mobile devices. The nature of the traffic is also changing from pure web browsing with latency-tolerant traffic to video, which is becoming the major class of content consumed on mobile devices. This trend, combined with the trend of decreasing prices per GB of data, which constrains the amount of money an operator can spend upgrading its network and they see increasing value in alternative solutions to address this data deluge while managing costs and maintaining customer service. A variety of solutions have been tried by operators based on enhanced charging, traffic engineering and backhaul infrastructure upgrades. Wi-Fi offload is one such promising solution as it addresses the congestion problem where it is most severe because of data consumption by users using streaming video. Cellular spectrum is a scarce and expensive resource for operators, and by allowing them to offload traffic to Wi-Fi networks in unlicensed spectrum they can free cellular spectrum for more valuable applications. Wi-Fi offload has, however, suffered from the incapability to manage seamless handovers and the required interaction of the user to select a Wi-Fi network. This made the process of attaching to a Wi-Fi network very complicated. These limitations have been addressed in recent standards and make the case for Wi-Fi offload more viable and attractive than earlier. At the same time new video optimization techniques such as H.264/SVC which allow the use of multiple streams and channel will allow content providers or distributors to use multiple networks and to scale video seamlessly according to handset capabilities and network conditions. The thesis proposes a solution, based on a set of new Wi-Fi standards and the new H.264/AVC codecs, which leverages a combination of low cost Wi-Fi and high reliability cellular networks to reduce the cost of video transmission while maintaining a comparable QOE for nomadic users. The thesis also enumerates some of the basic procedures that can be supported using the proposed architecture. This new architecture opens new opportunities for existing players in the mobile content ecosystem and adds new players to the ecosystem. The thesis identifies the needs and opportunities for each of the new player and also develops a cost model for streaming video using this solution.
Intelligent Multimedia Technologies for Networking Applications: Techniques and Tools
Intelligent Multimedia Technologies for Networking Applications: Techniques and Tools - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Intelligent Multimedia Technologies for Networking Applications: Techniques and Tools write by Kanellopoulos, Dimitris. This book was released on 2013-01-31. Intelligent Multimedia Technologies for Networking Applications: Techniques and Tools available in PDF, EPUB and Kindle. As ubiquitous multimedia applications benefit from the rapid development of intelligent multimedia technologies, there is an inherent need to present frameworks, techniques and tools that adopt these technologies to a range of networking applications. Intelligent Multimedia Technologies for Networking Applications: Techniques and Tools promotes the discussion of specific solutions for improving the quality of multimedia experience while investigating issues arising from the deployment of techniques for adaptive video streaming. This reference source provides relevant theoretical frameworks and leading empirical research findings and is suitable for practitioners and researchers in the area of multimedia technology.
Computing, Communication and Signal Processing
Computing, Communication and Signal Processing - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Computing, Communication and Signal Processing write by Brijesh Iyer. This book was released on 2018-09-12. Computing, Communication and Signal Processing available in PDF, EPUB and Kindle. This book highlights cutting-edge research on various aspects of human–computer interaction (HCI). It includes selected research papers presented at the Third International Conference on Computing, Communication and Signal Processing (ICCASP 2018), organized by Dr. Babasaheb Ambedkar Technological University in Lonere-Raigad, India on January 26–27, 2018. It covers pioneering topics in the field of computer, electrical, and electronics engineering, e.g. signal and image processing, RF and microwave engineering, and emerging technologies such as IoT, cloud computing, HCI, and green computing. As such, the book offers a valuable guide for all scientists, engineers and research students in the areas of engineering and technology.
