IPTV, or, Television over IP, is generating huge interest in the telecom industry lately. Telecom service providers (Telcos) view IPTV as a ticket to compete against the Cable industry by offering television services over Fiber/DSL lines. By offering video over their access infrastructure, Telcos hope to match the voice, video and data (“triple-play”) offering of Cable providers. However, unlike Cable television (CATV) systems that are typically analog transmissions on a broadcast medium, IPTV architectures deliver digital television using IP-multicast over point-to-point hybrid Fiber/DSL infrastructure. Unlike the more mature CATV infrastructure, IPTV leverages the most recent advances in networking and video compression technologies that while enabling more efficient networks, is also causing Telcos growing pains in field deployments.
In this tutorial, we will provide an overview of the network architectures and technologies that comprise an end-to-end IPTV system. As appropriate, we will highlight the various tradeoffs (e.g., channel change latency vis-à-vis compression technology) and compare it with the CATV approach. We will focus on hardware and software technologies from the service provider core to the home --- multicast transport, DSL technologies, MPEG standards and home-networking requirements such as the IPTV set-top box. We will also review the regulatory issues faced by Telcos relating to unbundling of their access infrastructure and statewide franchisee agreements. Since IPTV may not only be limited to Fiber/DSL, we briefly highlight competitive threats from emerging technologies such as Broadband over Power Lines. Finally, we describe the various lifestyle services such as “CallerId-on-TV” and converged voice-video applications that provides IPTV its cutting-edge differentiation.
Mr. Anurag Srivastava
Anurag Srivastava received his B.E (E.E) degree from University of Gorakhpur, India and M.S (Comp Sc.) from Indian Institute of Science, Bangalore in1997 and 1999 respectively. He has been working as Member of Technical Staff at Integrated Networks Research department of Bell Labs, Lucent Technologies since 2000. His research interests are in the area of video delivery over IP networks, location based technologies in wireless networks, MPLS and SONET/SDH protocols, and in solving complex routing and optimization problems in communication networks. His research work on location-based technologies was featured on NBC and over twenty affiliate stations in 2004. He has over 10 patents awarded or pending and several research papers to his credit. He has spoken at several major telecom conferences and presented his research work in industry trade shows. Recently, he gave a tutorial at the IEEE Sarnoff Symposium 2005 on the Video over Next-generation DSL Networks: Challenges and Opportunities. Most recently, he demonstrated his research work on "Universal IPTV: Anywhere, Anytime, Any device" at Supercomm 2005 in Chicago.
Dr. Swarup Acharya
Swarup Acharya is a Technical Manager in the Integrated Networks Research Department at Bell Labs. He received his Ph.D. from Brown University and a B.Tech (Hons.) from Indian Institute of Technology, Kharagpur. He performs research on IPTV and next-gen access, data and optical networking, network management and mobile computing. He has published extensively in those areas, authoring some of the most frequently cited papers in mobile database systems. He also has more than 25 patents approved, or pending, with the USPTO. Dr. Acharya actively collaborates with Lucent business units to transform his research into market-differentiating products. Dr. Acharya is an experienced speaker having presented to both technical and non-technical audiences including conferences, tradeshows, panels and Lucent customer meetings. His presentation at the MPLS 2004 tradeshow was one of the top-rated talks. He recently was awarded the Speaker of the Year award for 2005 by the IEEE New Jersey Coast section for his presentation on “MPLS Network Tuning: How to Get Most from Your Network”. His CV listing his various speaking engagements to date is available from his home page.