DOCSLIB.ORG

Mobile IPTV Architecture

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mobile IPTV Architecture IPTV Mobile IPTV Approaches, Challenges, Standards, and QoS Support IPTV is defined as multimedia services, such as TV, video, audio, text, graphics, and data, delivered over IP-based networks managed to support quality of service (QoS), quality of experience, security, interactivity, and reliability. Mobile IPTV extends those services to mobile networks. The authors discuss mobile IPTV standardization’s status, related approaches in the field, and technical challenges to enhancing mobile IPTV services. Given the critical role of QoS in the technology’s widespread adoption, the authors also propose an efficient signaling scheme to support QoS for seamless mobile IPTV services. obile IPTV lets mobile users In this article, we describe the cur- Soohong Park transmit and receive multi- rent status of mobile IPTV standardiza- Samsung Electronics M media traffic, such as TV sig- tion as well as mobile IPTV approaches nals, video, audio, text, and graphics, and technical challenges. Addition- Seong-Ho Jeong through IP-based networks with the ally, we propose an efficient signaling Hankuk University support of quality of service (QoS) and scheme to support QoS for seamless of Foreign Studies quality of experience (QoE), security, mobile IPTV services. QoS support is mobility, and interactivity. In short, critical for video delivery systems, es- mobile IPTV extends many IPTV ser- pecially in the mobile environment, and vices to mobile users. a requirement for viewer satisfaction. To coordinate and promote develop- ment of global IPTV standards, the ITU- Architectures and Approaches T in 2006 formed a focus group called ITU-T defines the IPTV architecture1 FG IPTV, which took into account the and further classifies it into next- existing work of ITU-T study groups and generation-network (NGN)-based and other standards development organiza- non-NGN-based architectures. In this tions. Then, in January 2008, the IPTV article, we address non-NGN-based ar- Global Standards Initiative (IPTV-GSI) chitectures for mobile IPTV services. In took over the IPTV standardization role. future work, we’ll incorporate the NGN- MAY/JUNE 2009 1089-7801/09/$25.00 © 2009 IEEE Published by the IEEE Computer Society 23 Authorized licensed use limited to: University of Texas at Arlington. Downloaded on April 24,2010 at 22:39:32 UTC from IEEE Xplore. Restrictions apply. IPTV Network Sender Receiver Wired equipment Wireless Digital Video Broadcasting’s Convergence of Broadcast and Mobile Services (DVB-CBMS; • Non-NGN-based architecture www.dvb.org/groups_modules/technical Network Sender • NGN IMS-based architecture _module/tmcbms), DVB IP Infrastructure (DVB- Wireless equipment • NGN non-IMS-based architecture IPI; www.dvb.org/groups_modules/technical_ module/tmipi), and the World Digital Multimedia The network includes IPTV access routers or Broadcasting (WorldDMB) Forum (www.world source generator points of attachment Mobile terminal dab.org) are key standards groups in this area. DVB-CBMS is developing protocol specifications Figure 1. Mobile IPTV architecture. In the first stage, a wireless for bidirectional, IP-based broadcasting over interface enables communication between the access network and DVB-H, the specification for bringing broadcast the receiver. In the second stage, the wireless section extends to the services to battery- powered handheld receivers sender, giving the sender’s and receiver’s devices mobility. (NGN: (www.dvb.org/groups_modules/technical next-generation network; IMS: IP-based Multimedia Subsystem) _module/tmh). DVB-IPI specifies technologies on the interface between an IP network and retail receivers, enabling the end user to receive DVB based mobile IPTV approach, which considers services over IP-based networks. The WorldDMB the IP-based Multimedia Subsystem (IMS). Forum is enhancing and extending Eureka 147, Figure 1 shows an overall mobile IPTV originally developed for digital radio applica- architecture. In the first stage, a wireless in- tions, to support IP-based and video services. terface enables communication between the Although this mobile TV plus IP approach access network and the receiver (mobile IPTV is classified as mobile IPTV, the use of broad- terminal). Because IPTV is access agnostic ac- casting networks might cause loss of IP indi- cording to ITU-T’s definition, various wire- viduality, such as point-to-point interactive less access networks, such as wireless LAN communication and personalized services. (WLAN),2 WiMAX,3 and cellular networks,4 can exist. Each wireless technology has its IPTV Plus Mobile own characteristics, which service providers Is networked TV the future of television? A lot should carefully consider when deploying mo- of services similar to IPTV are already on the bile IPTV. market, and more are in progress. Telco giants In the second stage, the wireless section ex- say IPTV is the new source of revenue. IPTV tends to the sender so that both the sender’s services originally targeted fixed terminals and receiver’s devices can be mobile. Moreover, such as set-top boxes, but mobility possibili- user-created content is becoming more popular ties have grown out of the fixed mobile con- in the Internet community; any mobile user can vergence trend. create IPTV content and provide it to other mo- The Alliance for Telecommunications In- bile IPTV users. dustry Solutions (ATIS) in the US and ITU-T Some of the approaches for mobile IPTV ser- IPTV-GSI internationally are primary standards vices we’ll discuss in this section are already in organizations in the IPTV plus mobile field. use. From the users’ perspective, no big func- Mobile IPTV specifications development is a tionality differences exist among the approach- relatively new effort. ITU-T FG IPTV has col- es, but the detailed technologies differ. lected requirements for IPTV, including mobile IPTV. ATIS, however, has yet to show interest in Mobile TV Plus IP mobility support. The main problem of this ap- Using traditional digital broadcast networks, proach is slow development, even for fixed wire- mobile TV plus IP delivers IP-based audio, less IPTV only. video, graphics, and other broadband data to mobile users.5 This approach aims to build an Cellular environment in which stable broadcasting facil- The Open Mobile Alliance’s Broadcasting Work- ities and content combine with diverse Internet- ing Group (OMA BCAST) is working on technol- based services. Additionally, mobile TV plus IP ogies for providing IP-based broadcast ser vices uses wide area wireless networks, such as cel- in the mobile environment. The technique’s lular networks, to support interactivity. main goals are to define an end-to-end frame- 24 www.computer.org/internet/ IEEE INTERNET COMPUTING Authorized licensed use limited to: University of Texas at Arlington. Downloaded on April 24,2010 at 22:39:32 UTC from IEEE Xplore. Restrictions apply. Mobile IPTV work for mobile broadcast and compile the set of the mobile terminal’s screen size when sending necessary enablers. A key feature of the cellular a video stream. approach is the bearer agnostic, which means it can adopt any broadcast-distribution network Bandwidth as its transport means. Although the wireless link’s effective band- OMA BCAST currently applies only to mo- width is growing rapidly, it won’t be suffi- bile terminals, but its specification might ex- cient for mobile IPTV until the 4G wireless pand to cover fixed terminals. network’s full deployment. Only then will the wireless link bandwidth become broad enough Internet to accommodate high-definition video ser- A product of the entertainment business, In- vices. Even when the 4G wireless network is ternet or Web TV comprises numerous Internet available, the bandwidth might not be suf- video services worldwide. With the Internet ap- ficient if bandwidth-greedy services such as proach, the model form depends on the business ultra-definition (UD) video emerge and the types and infrastructures it will support. number of users increases rapidly. The wire- Anyone can use this approach to play a role less link will always have less bandwidth than in the value chain; the user can be a content the wired link, and the number of high-band- provider, service provider, or consumer. This width applications will continue to increase. flexibility enables a universe of highly diversi- Therefore, bandwidth-aware solutions are al- fied and dynamically independent production, ways desirable for mobile IPTV services in the as well as a global reach. wireless environment. However, QoS isn’t guaranteed because the approach is based on the best-effort service Wireless Link model. Nevertheless, through its rapid adapta- The wireless link is vulnerable to physical fac- tion to customer needs, the Internet approach tors. When the mobile IPTV terminal moves might become dominant in the near future. around, packets can suffer quality degradation from such factors as shadowing and fading as Technical Challenges they travel through wireless channels. Even Mobile IPTV services must overcome several when mobile IPTV terminals are stationary, obstacles to a successful launch and wide use. temporal reflectors and obstacles in the wire- Because of a lack of consensus, we don’t pres- less environment can affect the received sig- ent detailed solutions to each technical issue in nal quality and cause burst packet losses. Such this section. quality degradation is intrinsic in the wireless Mobile IPTV implies at least one wireless link. So, the mobile IPTV servers and terminals link between the source, such as a streaming should react adaptively to the wireless link’s server, and the destination, such as a mobile varying conditions. terminal. Therefore, most of the technical chal- lenges are related to the wireless link. Service Coverage The purpose of mobile IPTV devices is to pro- Terminal Capabilities vide anytime, anywhere access to IPTV servic- Moving IPTV content from a standard home es. However, it’s virtually impossible to deploy display to a mobile terminal with a small screen a wireless network that covers all geographi- raises various concerns.
Load more

Recommended publications
  • System Architecture for IPTV Seamless Service in Mobility
    2.4-2 System Architecture for IPTV Seamless Service in Mobility Soohong Park*, Rim Haw**, and Choong Seon Hong**1 *Digital Media R&D Center, Samsung Electronics, Korea **Department of Computer Engineering, Kyung Hee University, Korea Abstract—IPTV is defined as multimedia services, such as TV, video content with high coding efficiency, it’s difficult to video, audio, text, graphics, and data, delivered over IP-based perform real-time encoding because of the SVC networks managed to support quality of service (QoS), quality of encoders’complexity. Additionally, further study is needed on experience (QoE), security, interactivity, and reliability. Those services are now expanded to mobile and wireless networks. This how to best control the SVC rate according to network paper illustrates what technical challenges to be considered for resource availability. (2) Bandwidth: although the wireless IPTV seamless service in wireless environment. Given the critical link’s effective bandwidth is growing rapidly, it won’t be role of QoS/QoE in the technology’s widespread adoption, this sufficient for IPTV services in wireless networks until the 4G paper also proposes efficient system architecture to support wireless network’s full deployment. Even when the 4G QoS/QoE for IPTV seamless service in wireless environment. wireless network is available, the bandwidth might not be sufficient if bandwidth-greedy services such as ultra-definition I. INTRODUCTION (UD) video emerge and the number of users increases rapidly. IPTV service is rapidly expanded to mobile and wireless The wireless link will always have less bandwidth than the areas. In order words, user is able to use IPTV services in wired link, and the number of high-bandwidth applications everywhere and even in motion.
    [Show full text]
  • Adaptive Broadband Video Streaming for Iptv Wireless Access
    Journal of Mobile Multimedia, Vol. 7, No.3 (2011) 177-193 © Rinton Press ADAPTIVE BROADBAND VIDEO STREAMING FOR IPTV WIRELESS ACCESS SALAH S. MAJEED MARTIN FLEURY University of Essex, Colchester, UK [email protected] [email protected] Received March 1, 2011 Revised August 29, 2011 Broadband wireless access supports mobile applications, which may soon extend to Internet Protocol TV (IPTV). IPTV streaming from a localized server is likely to be across a wired path through a metro network before crossing the wireless link. In this scenario, the paper proposes Broadband Video Streaming (BVS), which enhances UDP transport with a single, negatively acknowledged, lost packet retransmission. Taking IEEE 802.16e access as an example, results demonstrate that BVS is sufficiently able to compensate for packet losses without overly increasing delay and without the overhead of application forward error correction, whereas unembellished UDP, and two alternative congestion controllers (single- and multi- connection versions of TCP-Friendly Rate Control (TFRC)) are unable to both reduce packet loss and streaming delay. The paper exposes asymmetrical streaming behavior between downlink and uplink streaming and finds that, for downlink streaming, packet reordering by video picture-type packet is sensible. The paper then extends the classic BVS scheme with an adaptive scheme that takes into account whether packet losses are from congestion or wireless channel conditions or a mixture of both. To cope with this, adaptive BVS adopts differentiated lost packet retransmission according to the picture type of a lost packet. It is found that for greater packet loss, adaptive BVS achieves equivalent objective video quality to BVS but with reduced delay and bandwidth consumption.
    [Show full text]
  • IPTV Quality of Service Improvement Approach Over LTE Network
    International Journal of Computer Information Systems and Industrial Management Applications. ISSN 2150-7988 Volume 10(2018) pp. 272-288 c MIR Labs, www.mirlabs.net/ijcisim/index.html Submitted: 23 Dec, 2017; Accepted: 6 March, 2018; Publish: 19 Oct., 2018 IPTV Quality of Service Improvement Approach Over LTE Network Mohamed Matoui1, Noureddine Moumkine,2 and Abdellah Adib3 1Research Team: Networks, Telecommunications, and Multimedia Department of Computer Sciences, Faculty of Sciences and Technology Mohammedia, Morocco [email protected] 2Department of Computer Sciences, Faculty of Sciences and Technology Mohammedia, Morocco [email protected] 3Department of Computer Sciences, Faculty of Sciences and Technology Mohammedia, Morocco [email protected] Abstract: The latest experiences hint that IMS (IP Multimedia will prevent all aspects of fixed / mobile heterogeneity. In Subsystem) technologies cannot perform its highest QoS (Qual- the search for an inter-service and inter-network matching ity of Service) approaches as they aren’t able to distinguish be- solution, IP (Internet Protocol) is presented as a fundamental tween the priorities of IPTV (Internet Protocol Television) video convergence of NGN (Next Generation Network). It gave a components. IMS system also cannot ensure high IPTV data converged IP world in which terminals have become increas- transfer due to the limitation of available cellular bandwidth. ingly integrated and ubiquitous. One of the main issues fac- Success of IPTV services depends on how the customer per- ing telecom operators is to provide multimedia clients with ceives QoS related to the provided stream. The satisfaction personalized and efficient services depending on the operat- of this factor is crucial to the success of IMS services.
    [Show full text]
  • Intelligent Handover Decision Using IEEE 802.21 in Mobile IPTV∗
    IEICE TRANS. COMMUN., VOL.E96–B, NO.2 FEBRUARY 2013 647 LETTER Intelligent Handover Decision Using IEEE 802.21 in Mobile IPTV∗ Soohong PARK†a), Jun LEE†b), Nonmembers, and Choong Seon HONG†c), Member SUMMARY This letter proposes a new mechanism for network config- network information, particularly DHCP and DNS discov- uration on a mobile device that provides Point of Attachment (PoA) specific ery and configuration, and so on. information using IEEE 802.21 and DHCP before moving to a new PoA. This letter mainly focuses on the initial time delay This allows the mobile device to prepare for intelligent handover decision either stateless address configuration or stateful address configuration when meant for IP address configuration while connecting to the entering an IPv6 network. It allows the mobile device to reduce time delay new PoA. Without the proposed mechanism by this letter, for IP address configuration in the new PoA. Implementation and evalua- the mobile device always trigger its IP stack to configure a tion results show that the proposed mechanism can be an acceptable net- new IP address in stateless address configuration mode [2] work configuration mechanism for providing seamless television watching in IPv6 mobile networks, even when in motion. when connecting to the new PoA, even the new PoA does key words: IEEE 802.21, Mobile IPTV, IPv6.DHCPv6 not support stateless address configuration mechanism, but just provide stateful address configuration using Dynamic 1. Introduction Host Configuration Protocol (DHCP) [3]. It waists time un- necessarily. To reduce address configuration delay, any al- IPTV allows users to transmit and receive multimedia traffic ternative ways are required to provide network information and provides real-time broadcasting and video on demand of the new PoA before the handover.
    [Show full text]
  • Soft Handover Mechanism Based on RTP Parallel Transmission for Mobile IPTV Services Qi Qi, Yufei Cao, Tonghong Li, Xiaomin Zhu, Jingyu Wang
    2276 IEEE Transactions on Consumer Electronics, Vol. 56, No. 4, November 2010 Soft Handover Mechanism Based on RTP Parallel Transmission for Mobile IPTV Services Qi Qi, Yufei Cao, Tonghong Li, Xiaomin Zhu, Jingyu Wang Abstract — Mobile Internet Protocol Television (IPTV) technologies including Wideband Code Division Multiple provides users with multimedia content through wireless Access (WCDMA), Wireless Local Area Network (WLAN), access technologies whenever they want and wherever they and World Interoperability for Microwave Access (WiMAX) are. However, vertical handover in heterogeneous networks etc. When users move among these networks, the continuity results in long interruption time and large packet loss rate, of the services should be guaranteed with neither disruption which poses a challenge for seamless mobile IPTV service. nor perceptible degradation. Thus, the mobility management is The existing solutions that make use of the heterogeneous the key point to provide seamless mobile IPTV service. access networks to transmit multimedia content have two Moreover, as the wireless networks have limited resources drawbacks: high bandwidth consumption of the wireless compared to wired networks, overall bandwidth consumption networks and lots of packets loss when a user resides in the needs to be minimized. Although the vertical handover has overlapped area of the boundary. To solve these issues, we been a research subject for several years, it still poses a propose a new soft handover mechanism, based on the IPTV challenge for mobile IPTV service as it typically causes long server and the consumer electronic devices. The proposed handover delay, high packet loss rate and wireless bandwidth Parallel Soft Handover (PSH) divides the Real-time Transport waste.
    [Show full text]
  • 5G Network Optimizations for Streaming Multimedia Services
    International Journal of Advanced Research and Publications ISSN: 2456-9992 5G Network Optimizations for Streaming Multimedia Services Hegazi Ibrahim1 1Nile Higher Institution of Engineering and Technology, Electronics and Communications Dept. Mansoura, Egypt ,00201012365501 [email protected] Abstract: According to major challenges that faced the transmission of streaming media over wireless networks, it is essential to propose many mechanisms to support fair quality for all subscribers in the available coverage area. In this research, proposed algorithms could be implemented for solving delay and losses problems as the following: (I) Usage of hybrid radio resource managements (RRM) and distributed antenna systems (DASs), (II) Using smart antenna techniques in the transmission and reception of streaming packets, (III) Using proposed jamming node algorithms to solve co-channel interference without increasing number of cells and (IV) Proposed algorithms for accessing multimedia streaming services over 5G networks such as voice over internet protocol (VOIP) and Internet Protocol Television (IPTV). The proposed schemes had to improve the overall system quality of service (QoS) based on different international standard quality metrics. Keywords: Hybrid Radio Resource Managements (RRM), Distributed Antenna Systems (DASs), Internet Protocol Television (IPTV), Voice over Internet Protocol (VOIP) and Quality of Service (QoS). 1. Introduction available today and can be accessed with high-speed networks. Multimedia applications examples contain
    [Show full text]
  • Considerations of Supporting Seamless Mobility to Mobile User in Mobile IPTV Environments
    Considerations of supporting seamless mobility to mobile user in Mobile IPTV environments SungHyup Lee, SunYoung Kwon, WonGyu Jang, and TaeOg Park Korea Radio Promotion Agency {shlee, silsil, jwg0619, topark}@korpa.or.kr Mobile IPTV 환경에서 모바일 사용자에게 끊김없는 이동성 제공을 위한 고려사항 이성협, 권선영, 장원규, 박태옥 한국전파진흥원 Abstracts Mobile IPTV lets mobile users transmit and receive multimedia traffic, such as TV signals, audio, text and graphics, through IP-based networks with the support of quality of service(QoS) and quality of experience(QoE), mobility and interactivity [1]. To provide service feasibility, QoS and seamless mobility to mobile users, we consider mobility prediction, link stability, service requirements to develop resource reservation scheme in mobile IPTV environments. Thus, we study for mobility prediction and QoS-guaranteed mobile IPTV service prior to develop the resource reservation scheme. 1. Introduction mobile networks, mobile user reserves the resource including bandwidth and session to seamless provide service. In this case, Mobile IPTV lets mobile users transmit and receive we need mobility prediction and QoS provisioning mechanism. multimedia traffic, such as TV signals, video, audio, text, and graphics, through IP-based networks with the support of quality of service (QoS) and quality of experience (QoE), security, mobility, and interactivity. In short, mobile IPTV extends many IPTV services to mobile users [1]. IPTV defines the way of provisioning real-time television services over IPTV networks with various mechanisms implemented to ensure the appropriate level of quality. Originally, IPTV was proposed to serve the users of fixed terminals, such as set-top box and desktop computer. As the requirement of mobility rises up, it is an inevitable trend to extend IPTV technology from wired networks to wireless networks.
    [Show full text]
  • HSTP.IPTV-Gloss Glossary and Terminology of IP-Based TV- Related Multimedia Services
    International Telecommunication Union ITU-T Technical Paper TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (11 July 2014) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services – Communication procedures HSTP.IPTV-Gloss Glossary and terminology of IP-based TV- related multimedia services Summary This technical paper specifies terminology related to IP-based TV multimedia services. Keywords IPTV, Terminology Change Log This document contains Version 1 of the ITU-T Technical Paper on "Glossary and terminology of IP-based TV-related multimedia services" approved at the ITU-T Study Group 16 meeting held in Sapporo, Japan, 30 June – 11 July 2014. Editors: Myung-Eun Kim Tel: +82-42-860-5303 ETRI Fax: +82-42-860-6202 Republic of Korea Email: [email protected] Muzaffar Djalalov Tel: +998-71-235-7907 Communication and Information Agency Fax: +998-71-235-7907 Uzbekistan (Republic of) Email: [email protected] HSTP.IPTV-Gloss (2014-07) i CONTENTS Page 1 SCOPE ..................................................................................................................................................................... 1 2 REFERENCES ........................................................................................................................................................ 1 3 DEFINITIONS ........................................................................................................................................................ 1 3.1 TERMS DEFINED ELSEWHERE................................................................................................................................
    [Show full text]
  • Qos-Guaranteed Mobile IPTV Service in Heterogeneous Access Networks
    Computer Networks 69 (2014) 66–81 Contents lists available at ScienceDirect Computer Networks journal homepage: www.elsevier.com/locate/comnet QoS-guaranteed Mobile IPTV service in heterogeneous access networks ⇑ Soohong Park a, Jaehoon (Paul) Jeong b, Choong Seon Hong c, a Software R&D Center, Samsung Electronics, Republic of Korea b Department of Software, Sungkyunkwan University, Republic of Korea c Department of Computer Engineering, Kyung Hee University, Republic of Korea article info abstract Article history: Internet Protocol Television is defined as a multimedia service delivered over IP-based net- Received 1 April 2013 works supporting quality of service (QoS), quality of experience (QoE), security, interactiv- Received in revised form 5 March 2014 ity, and reliability. This service is rapidly expanding to both wireless and mobile networks Accepted 18 April 2014 through mobile devices. This trend demands a seamless IPTV service architecture for those Available online 14 May 2014 mobile devices in heterogeneous access networks. This is because the convergence of the heterogeneous access networks can resolve their own service-coverage limitations, elimi- Keywords: nating dead spots. We first briefly research on the background and trend for the seamless Mobile IPTV IPTV service for heterogeneous networks. Next we propose a new system architecture tak- IPTV architecture Mobile networks ing the relevant technical issues into account. This architecture is mainly composed of Heterogeneous access networks three parts, (i) information of network conditions on client, (ii) signaling for communicat- Quality of service ing between client and server with information of network conditions, and (iii) adaptive Quality of experience streaming based on information of network conditions.
    [Show full text]
  • Internet Protocol Television (IPTV) Services
    Fred Biko Otieno Mboya Internet Protocol Television (IPTV) Services Helsinki Metropolia University of Applied Sciences Bachelor of Engineering Information Technology Thesis 20 April 2016 Abstract Author(s) Fred Biko Otieno Mboya Title Internet Protocol Television (IPTV) Services Number of Pages 45 pages Date 20 April 2016 Degree Bachelor of Engineering Degree Programme Information Technology Specialisation option Telecommunication and Networking Instructor Dr. Tero Nurminen, Principal Lecturer This thesis mainly deals with IPTV (Internet Protocol TV) technology and how it changes the business of television; its development and architectural design; its applications and progress into the future. The goal of the project is to enhance professional networking on both live TV and radio platform, know how the IPTV functions and how it differs from inter- net TV, how it is formatted, transported and delivered to the end users. Equally important, how providers charge for it and make a living. The study itself was carried out by retrieving information from different sources such as the library, the Internet, through self-observation, and discussions with the chief supervisor and instructor. Different aspects of IPTV are discussed in different phases of the thesis. First, the study introduces IPTV technology, its background and means of transmission. Then, the study entails the architectural design of IPTV, multimedia methods and applica- tions, compression techniques and finally its purpose and role to the growing technology services. The purpose
    [Show full text]
  • Broadcasters' Requirements for IPTV
    IPTV Broadcasters’IPTV requirements for Oliver Werner WDR IPTV is not a well-defined term and may be a source of ambiguity and sometimes confusion. This article describes the basic building blocks in order to clarify the difference between “IPTV” and what is increasingly being called “WebTV”. A comparison between IPTV and the DVB transmission schemes for satellite and cable is also made, providing some insight into the similarities between these delivery systems but also revealing subtle differences. The IPTV requirements for retransmitting live broadcast signals and on-demand services are outlined, and some approaches for meeting these requirements are discussed. The penetration of households with broadband internet access and downstream data rates of several Megabit per second (Mbit/s) is making steady progress. For example, in Germany, the number of DSL households rose from about 7.6 million in March 2005 to more than 12 million in June 2006 [1], and is growing rapidly. Thus an increasing number of households are getting used to video streaming and download, using the Internet Protocol (IP) to enable interactive retrieval of video content (including TV programmes, either live or on-demand) from the Web. This type of IP video may be termed WebTV. WebTV is getting increasingly popular among the audience and many broadcasters have started to offer such services on their websites. However, unlike conventional television, WebTV does not provide a guaranteed quality of service. Telephone companies are now making an attempt to overcome the deficiencies of WebTV and are launching so-called IPTV. The take-up of mobile communications and the resulting decline in telephony on fixed-line networks has stimulated the need for new revenue streams.
    [Show full text]
  • IPTV: an End to End Perspective Marie-Jose´ Montpetit MIT Research Lab for Electronics, Cambridge, MA, USA Email: [email protected]
    358 JOURNAL OF COMMUNICATIONS, VOL. 5, NO. 5, MAY 2010 IPTV: An End to End Perspective Marie-Jose´ Montpetit MIT Research Lab for Electronics, Cambridge, MA, USA Email: [email protected] Thomas Mirlacher IRIT, University of Toulouse, FR Email: [email protected] Michael Ketcham Keller, TX, USA Email: [email protected] (Invited Paper) Abstract—IP video has taken two forms: Internet Proto- communication services, the TV experience is being ex- col Television (IPTV), which emulates broadcast Television tended to embrace many of the services provided by web (TV), and Internet video where video selections are accessed applications. At the same time technology advancements across the Internet through Web sites such as YouTube, Hulu, Netflix and others. IPTV and Internet video each and architectures developed for IPTV are now commonly provide capabilities that will drive new TV experience. used for video delivery over the Internet, from protecting As more and more TV content migrates to the Internet, commercial content for Over-The-Top (OTT) providers to “personal” video choices are becoming the norm, not the influencing the “Internet of Information” envisaged as the exception, for IPTV as well as Internet video. Beyond future of the Internet. today’s established IPTV, transformations in how media are managed and delivered promise a world of personalized Some transformations in IPTV are these: content and services delivered to “any device, anytime, First, TV is no longer be targeted at devices with a anywhere.” small number of dedicated functions (“TV” or “music This paper describes the co-evolution of IPTV and In- player”). Instead, media are accessed on multi-purpose ternet video.
    [Show full text]