From the Guest Editors: IPTV in Multimedia Broadcasting
Thomas Stockhammer2009, IEEE Transactions on Broadcasting
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Abstract
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This special issue focuses on the emergence of Internet Protocol Television (IPTV) as a viable technology for delivering multimedia services over broadband networks. It includes research on various aspects of IPTV, such as standards development, architecture, transport protocols, caching algorithms, audience measurement methodologies, content replication, and scalable video coding. The papers presented offer innovative approaches and solutions to enhance the quality of service, user experience, and operational efficiency in IPTV deployments, highlighting the potential and challenges in standardization and implementation.
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This tutorial presents on IPTV technology. Internet Protocol television (IPTV) is a system through which television services are delivered using the architecture and networking methods of the Internet Protocol suite over a packet-switched network infrastructure. IPTV services may be classified into three main groups: live television, time-shifted programming, and video on demand.
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After the success of carrying voice over IP networks, the dream of an IP-based television is being turned into reality with the research and standardization efforts. Today, standardization organizations, researchers, as well as commercial companies are putting huge efforts to make Internet Protocol TeleVision (IPTV) successful. The achieved successes of IPTV are due to many factors, including mainly the advanced video coding techniques, the continuously increasing Internet bandwidth that end users have been enjoying and the mature wired and wireless networking protocols and architectures. Although IPTV still faces many challenges, many content providers as well as Internet Service Providers (ISPs) already started to deliver IPTV services to customers. Nevertheless, the way ahead is still long and more efforts are required. This paper surveys a breadth of research areas related to IPTV. It first discusses the general service architecture of IPTV services and diagnostics in these architectures. It then turns the attention to surveying encoding techniques that can serve as enablers for future IPTV especially Scalable Video Coding. Then, various IPTV distribution approaches including peer-to-peer and Content Distribution Networks are discussed. After that, major work on security and privacy concerns in IPTV is tackled. Finally, a discussion of the major work in wireless IPTV services is discussed with focus on LTE-based service offering. We believe such a survey will be very helpful for researchers who would like to educate themselves in the overall landscape of IPTV before digging deeper to address open research problems to bring IPTV closer to reality.
IPTV: An End to End Perspective
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IP video has taken two forms: Internet Protocol Television (IPTV), which emulates broadcast Television (TV), and Internet video where video selections are accessed across the Internet through Web sites such as YouTube, Hulu, Netflix and others. IPTV and Internet video each provide capabilities that will drive new TV experience. As more and more TV content migrates to the Internet, "personal" video choices are becoming the norm, not the exception, for IPTV as well as Internet video. Beyond today's established IPTV, transformations in how media are managed and delivered promise a world of personalized content and services delivered to "any device, anytime, anywhere." This paper describes the co-evolution of IPTV and Internet video. It gives a tutorial-level overview describing how IPTV content is managed and delivered today. Then it discusses the impacts on the IPTV architecture and media value chain from transformations in IPTV that are enhanced by Internet and Web capabilities.
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iptv
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IPTV is a system used to deliver digital television services to the consumers through broadband. This delivery of digital television is made possible by using Internet Protocol over a broadband connection, usually in a managed network rather than the public Internet to preserve quality of service guarantees. The Internet Protocol (IP) Multimedia Subsystem, better known as "The IMS", is based on the specification of the Session Initiation Protocol (SIP) as standardized by the Internet Engineering Task Force (IETF). IMS is an architecture for the convergence of data, speech and mobile networks and is based on a wide range of protocols, of which most have been developed by the IETF. It combines and enhances them to allow real time services on top of the Universal Mobile Telecommunications System (UMTS) packet-switched domain. This paper presents various standardization efforts for IPTV, deployment of IPTV over IP Multimedia Subsystem. It further also deals the advantage of IMS based IPTV, its implementation challenges, performance and capacity , and testing requirement.
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Towards-an-Enhanced-Quality-of-IPTV-Media-Server-Architecture-over-Software-Defined-Networking.pdf
The aim of this paper is to present the QoE (Quality of Experience) IPTV SDN-based media streaming server enhanced architecture for configuring, controlling, management and provisioning the improved delivery of IPTV service application with low cost, low bandwidth, and high security. Furthermore, it is given a virtual QoE IPTV SDN-based topology to provide an improved IPTV service based on QoE Control and Management of multimedia services functionalities. Inside OpenFlow SDN Controller there are enabled in high flexibility and efficiency Service Load-Balancing Systems; based on the Loading-Balance module and based on GeoIP Service. This two Load-balancing system improve IPTV end-users Quality of Experience (QoE) with optimal management of resources greatly. Through the key functionalities of OpenFlow SDN controller, this approach produced several important features, opportunities for overcoming the critical QoE metrics for IPTV Service like achieving incredible Fast Zapping time (Channel Switching time) < 0.1 seconds. This approach enabled Easy and Powerful Transcoding system via FFMPEG encoder. It has the ability to customize streaming dimensions bitrates, latency management and maximum transfer rates ensuring delivering of IPTV streaming services (Audio and Video) in high flexibility, low bandwidth and required performance. This QoE IPTV SDN-based media streaming architecture unlike other architectures provides the possibility of Channel Exchanging between several IPTV service providers all over the word. This new functionality brings many benefits as increasing the number of TV channels received by end –users with low cost, decreasing stream failure time (Channel Failure time < 0.1 seconds) and improving the quality of streaming services.
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Video oriented services are taking the lead in terms of revenue in the current Internet environment. In order to tap this revenue, Telcos are resorting to serious measures such as moving to Next Generation Network (NGN) where they can provide QoS for services that demand this feature, such as, IPTV. IPTV is more than just what its name implies and
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Multimedia content delivery in IMS, including IPTV, is handled by a separate unit, the Media Function (MF), made up of media control and media delivery units, which in the case of IPTV are the Media Control Function (MCF) and Media Delivery Function (MDF), respectively. According to the different specifications of an IMS based IPTV architecture, the User Equipment (UE) is expected to use the RTSP protocol as a media control protocol to interact with the MCF, and obtains delivery of media from the MDF using the RTP protocol. This also means that the streaming session needs to be initiated from the media controller on behalf of the user but the delivery of media is sent to the UE from the media deliverer (media server). Due both to the lack of free and open source Media Servers and the availability of free and open source Streaming Servers, the ideal choice for the delivery of multimedia services, including IPTV, by the research community is Streaming Servers. Nevertheless, because of...
SIP Based IPTV Architecture for Heterogeneous Networks Server Architecture
I would like to thank my parents for their friendship, encouragement and caring over all these years, for always being there for me through thick and thin and without whom this project would not be possible. I would also like to thank my grandparents, aunts, uncles and cousins for their understanding and support throughout all these years. I would also like to acknowledge my dissertation supervisors Prof. Mario Nunes and Prof. Rui Cruz for their insight, support and sharing of knowledge that has made this dissertation possible. Also, to my friend and colleague João Domingues, for his comradeship, support and friendship throughout our whole academic life and particularly during the time we spent working on this project. Last but not least, to all my friends and colleagues that helped me grow as a person and were always there for me during the good and bad times in my life. Thank you. To each and every one of you -thank you. Abstract This dissertation presents an IP Television (IPTV) service architecture that applies the Session Initiation Protocol (SIP) for session and media control, while incorporating a design suitable for deployment in the context of an IP Multimedia Subsystem (IMS) architectural framework. The main features of the architecture include flexible delivery of personalized multimedia streams, adaptability to the characteristics of the networking infrastructures and channels used for transmission, and a modular design to facilitate implementation of new functionalities and services. In order to maximize the end users Quality Of Experience (QoE) independently of the access medium used, a Quality Of Service (QoS) adaptation method is proposed allowing dynamic realtime updates of session attributes. The developed solution is specifically designed for live multimedia streaming, such as broadcasted events, independently of the cast mode (unicast or multicast). Private Video Recorder (PVR) functions and Video On Demand (VoD) services are supported, their control is assured by standard SIP messages. This dissertation is focused on the development of an IPTV Application Server (AS), that interacts with an IPTV Client developed under the same research project. The functionalities and scalability of the AS were tested on a live wireless 3G Code Division Multiple Access 2000 (CDMA2000)
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