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IPTV Seminar for Academic Session 2007-2008

This seminar explores the evolution, technologies, and architecture of IPTV (Internet Protocol Television). Topics include TV transmission modes, multicast streaming, unicast streaming, convergence of IP and TV, broadband and xDSL, compression technology, security issues, and content services in triple play.

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IPTV Seminar for Academic Session 2007-2008

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  1. A Seminar onIP-TV[Internet Protocol-Television]For Academic Session2007-2008Submitted to: Submitted by: Prof. R. L. DUA § Hemant Sharma (HOD) § B.E. Final YearDeptt. Of Elec. & Comm. Engg. § Elec. & Comm.YIT, Jaipur Engg.YAGYAVALKYA INSTITUTE OF TECHNOLOGYYIT Lane, Opp.Chokhi Dhani, RIICO Indust. Area,Sitapura, Jaipur-302022

  2. ABOUT TV !Television (TV): specifies the medium of communication that operates through the transmission of information to the users as pictures and sounds for their interpretation &entertainment.MODES OF TV TRANSMISSION Historic view-TV transmission from towers, distribution over a cable n/w or beamed directly from Satellite (VSAT). Modern view-TV, Telephone services & high speed internet access will be delivered over present broadband DSL Network on a single connection.

  3. Types Of Transmission MULTICASTING- A multicast stream is sent to a multicast group internet address. When a user selects a live channel, a request to join the group of viewers associated with the relevant multicast address is sent from the set top box to the equipment in the local telephone exchange. UNICASTING- A video-on-demand service is unique to each viewer & delivered as a unicast stream. It is sent to a single internet address in response to a request from the receiver.

  4. Evolution [of the TV] IPTV ≠ Evolution –> IPTV = Redefinition of “Broadcast” IPTV Digital, HDTV16:9 aspect ratio NTSC ColorStandard Electronic TV 4:3 aspect ratio Mechanical Televisor7:3 aspect ratio t 1884-1928 1935 1953 2000 2006

  5. The Origin of IP-TV CONVERGENCE

  6. Definition of IP-TV IPTV essentially has two components: • Part 1: Internet Protocol (IP): specifies the format of packets and the addressing scheme. The protocol establishes a virtual connection between a destination and a source. IP allows you to address a package of information and drop it in the system, but there’s no direct link between you and the recipient. • Part 2: Television (TV): specifies the medium of communication that operates through the transmission of pictures and sounds. We all know TV, but here we are referring to the services that are offered for the TV, like linear and on-demand programming.

  7. Technologies involved in IP-TV : 1. Broadband – The key element As per TRAI: “An always-on data connection that is able to support interactive services, and has the capability of minimum download speed of 256 kbps” Note: This definition for throughput may undergo up gradation in the future.

  8. 2. xDSL • xDSL Family Tree • Symmetric DSL • Provide identical data rates upstream & downstream • Asymmetric DSL • Provide relatively lower rates upstream but higher rates downstream • Four main variations of xDSL exist: • ADSL-Asymmetrical Digital Sub’s Line • HDSL-High bit/data rate Digital Sub’s Line • SDSL--SymmetricDigital Sub’s Line • VDSL-Very-high-data-rate Digital Sub’s Line

  9. Some DSL Standards

  10. ADSL Modulation Upstream Voice Downstream 16 64 No of Bits 37 255 6 38 15 1104 138 25 4 139 0 276 kHz Downstream Tone 69 kHz Upstream Tone Frequency (KHz)

  11. ADSL2+ Potential Data Rate, Mbps (downstream) ADSL2+ Feature Approved by ITU-T in July 2002 Operate within 2.2Mhz spectrum Minimized disturbance to/from ADSL 24 Enhancements to traditional ADSL Boost Maximum performance (Down/Up) 12Mbps/1Mbps or 8Mbps/3Mbps Improved DSL Access to both Residential and Business users ADSL2+ 12 ADSL2 Provides ADSL service over longer loop lengths 8 ADSL ADSL2(annex L) 6 Km 1 Km 2 Km 3 Km 4 Km 5 Km Loop Length, Km

  12. ADSL2+ Potential

  13. Basic Architecture of ADSL

  14. RJ 11 Line Splitter Line RJ 11 ADSL MODEM Splitter ADSL MODEM RJ 11 RJ 11 RJ 11 RJ 11 RJ 45 RJ 11 RJ 45 RJ 11 RJ 45 Single User with Voice, Data and Video Single User with Voice and Data RJ 45 STB AV Port Line RJ 11 Splitter ADSL MODEM RJ 11 RJ 11 RJ 45 Switch Multi user Business Customer Extension of ADSL to IP-TV

  15. Triple Play Video ADSL Modem IPTV Set Top Box (STB) ADSL Splitter Landline Internet Voice service

  16. Circuit Diagram of Splitter highpass DSL LINE filter • Splitter • Separates the 300 Hz to 3500 Hz voice channel from upstream and downstream channels • Reduces traffic congestion • Pass voice, dial tone, ringing and on/off hook signals • Consists of a lowpass filter (LPF) for POTS and a highpass filter (HPF) for upstream/downstream channels • Passive device lowpass filter TELE

  17. IP-TV NETWORK ARCHITECTURE

  18. COMPRESSION TECHNOLOGY • H.264 is mainly used • It has 50% more compression efficiency as compared to MPEG-2 • Picture quality is retained at low bit rates • It enables the broadcast of HD over IPTV

  19. Comparison between H.264 & MPEG2

  20. SECURITY ISSUES • DIGITAL RIGHTS MANAGEMENT(DRM) • WATERMARKING

  21. Content Services in Triple Play • On Demand type • Interactive VOD • Scheduled Play-out( n-VOD) • Scheduled Capture ( n-PVR) • Client side Personal Video Recording • Pay per View(PPV) • Games on Demand • Time Shifted TV • Others ( Music Download,Music of Demand,Karaoke on Demand,TV based internet access, caller ID pop up) Broadcast type • IPTV • Pay TV • Hi-Fi Radio • Electronic Programme Guide (EPG) • Multicast Streaming • Live Streaming for VOD • Progressive Downloads(Video , gaming,music downloads) • Interactive type • Interactive TV • Video Conferencing • Interactive Online Network Gaming • Interactive E-Learning • Interactive E-Shopping • Tele-Medicine • Internet and Voice types • VoIP • Browsing on TV • E-mail/SMS/MMS from TV • Caller ID Popup

  22. UserExperience Recommendations, Rating, Time Boxing A Guide That Actually Guides You!

  23. Advantages of IPTV Traditional TV Distribution IPTV IPTV Reinvents Entertainment in the Home

  24. WHY IP-TV ?

  25. The Forces are Right Global demand speeds innovation and drives down the cost curve These developments create video and consumer data growth opportunities Bandwidth Requirements New compression technologies reduce bandwidth required Deployment Costs New distribution architecturesallow delivery of higher bandwidth at a lower cost Growth Potential Global Development

  26. Thank You !

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