IPTV


                 Rajesh Vale




Rajesh J. Vale   Department of Computer Science 2009
Objective

g   Use existing infrastructure/technology for
    –   Access
    –   Transport
    –   Video encoding
    –   ...
Access

g   Wireless feasible?
g   xDSL
     – 512kbps, 768kbps etc is inadequate
g   Solution?
       • Fiber to home
   ...
Transport

g   Efficient way of transporting in IP layer
    – Broadcast TV (bTV)
    – VoD
    – Live-Pause TV or Network...
bTV: Multicast Issues

g   What about lost packets?
     – Retransmission
     – FEC
     – Interpolation
g   Is there suc...
Video Encoding

g   Group of Pictures (GOP)
    – GoP size varies over time
    – Average with variance bounds exists
g   ...
bTV: QoE
g   Channel surfer experience
    – Load on network
g   Immediate channel change
    – How to overcome wait for I...
VoD

g   Buy now, watch anytime in next 30 days
g   Trick mode operations
    – Pause/FF/Rew
g   Content theft prevention
...
Authentication

g   Identity levels
     – Household
     – Individual
     – Avatar
g   How to use existing AAA infrastru...
Billing

g   Online billing
    – Non-IPTV services

g   Offline billing
    – Traditional billing



        Rajesh J. Va...
Future IS/IT

IP address is associated with viewer.
  Leverage it for unique services
g Websurfing/shopping

g Targeted Ad...
MSTV Architecture




Rajesh J. Vale              Department of Computer Science 2009
    http://www1.alcatel-lucent.com/c...
Cisco IPTV Architecture




Rajesh J. Vale               Department of Computer Science 2009
http://www.cisco.com/global/D...
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IPTV Rajesh Vale

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IPTV Rajesh Vale

  1. 1. IPTV Rajesh Vale Rajesh J. Vale Department of Computer Science 2009
  2. 2. Objective g Use existing infrastructure/technology for – Access – Transport – Video encoding – Authentication – Billing To provide Television services (Live & VoD) to consumers. Rajesh J. Vale Department of Computer Science 2009
  3. 3. Access g Wireless feasible? g xDSL – 512kbps, 768kbps etc is inadequate g Solution? • Fiber to home • Fiber to neighborhood g Mobility Vs Nomadicity – Mobility: Point of attachment changes in-session Rajesh J. Vale Department of Computer Science 2009
  4. 4. Transport g Efficient way of transporting in IP layer – Broadcast TV (bTV) – VoD – Live-Pause TV or Network PVR g bTV natural candidate for Multicast g VoD for Unicast g Live-pause TV? Rajesh J. Vale Department of Computer Science 2009
  5. 5. bTV: Multicast Issues g What about lost packets? – Retransmission – FEC – Interpolation g Is there such a thing as ‘reliable multicast’? g Multicast tree administration? Rajesh J. Vale Department of Computer Science 2009
  6. 6. Video Encoding g Group of Pictures (GOP) – GoP size varies over time – Average with variance bounds exists g I/P/B frames – Transmission sequence : IBBPBBPBBPBB g CBR Vs VBR – CBR is preferred for predictability and efficient network engineering Rajesh J. Vale Department of Computer Science 2009
  7. 7. bTV: QoE g Channel surfer experience – Load on network g Immediate channel change – How to overcome wait for I-Frame? • Smaller GoP encoding • Start from previous I-Frame – Catchup? • Create I-frame on request g How network knows I-frame carrying IP packet? Rajesh J. Vale Department of Computer Science 2009
  8. 8. VoD g Buy now, watch anytime in next 30 days g Trick mode operations – Pause/FF/Rew g Content theft prevention – DRM system on top of every content flow Rajesh J. Vale Department of Computer Science 2009
  9. 9. Authentication g Identity levels – Household – Individual – Avatar g How to use existing AAA infrastructure? – Limitations g 802.1X, SIM card, PKI certificate… Rajesh J. Vale Department of Computer Science 2009
  10. 10. Billing g Online billing – Non-IPTV services g Offline billing – Traditional billing Rajesh J. Vale Department of Computer Science 2009
  11. 11. Future IS/IT IP address is associated with viewer. Leverage it for unique services g Websurfing/shopping g Targeted Advertisements g Interactive TV g Blended services WEBSERVICES – Caller ID on TV – E-mail alerts Rajesh J. Vale Department of Computer Science 2009
  12. 12. MSTV Architecture Rajesh J. Vale Department of Computer Science 2009 http://www1.alcatel-lucent.com/com/en/appcontent/opgss/IPTV_sb_tcm228-693051635.pdf
  13. 13. Cisco IPTV Architecture Rajesh J. Vale Department of Computer Science 2009 http://www.cisco.com/global/DK/docs/presentations/partnere/IPTV-Copenhagen-291105.pdf

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