30-07-2014, 03:13 PM
IPTV Technology
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Introduction
IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability.”
Use Access Networks to reach clients, not general internet links
IPTV is not audio/video through the internet
IPTV Services
Basic and Premium Television
Interactive TV / Two way communication
HDTV
Video on Demand
Time shifted TV
Instant Messaging
TV Telephony
Gaming and Betting on Demand
Web and e-mail
Why IPTV?
More control over service for user
What to watch and when to watch
More interactive
Better Quality
DVD quality video, CD quality music
Convergence – Single device to watch TV, surf web and video calling
PC is not attractive due to lower picture quality, cost and boot time
IPTV Technical challenges
Bandwidth requirements for streaming
High bandwidth continuously
Last mile is the problem
DSL originally employed for burst (web) traffic, Not support MPEG-2
Need to compress the video streams
Reducing channel change time
Due to multicasting it takes time
Providing VoD
Need to unicast messages
Core Network
High speed data network
Technologies used:
ATM and SONET/SDH
IP and MPLS
Metro Ethernet
IP STB
IPTV hardware and software infra-structure at customer premises
Runs the IPTV middleware at client side
Decrypt the scrambled video stream
Video decoding
Produce composite (analog) video output
Program navigation with EPG
Conclusion
The Open IPTV architecture is very comprehensive
Open IPTV uses the concept of ”managed” and open Internet. The managed part provides guarantees for
content delivery and defines sets of protocols for achieving this
[attachment=66379]
Introduction
IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability.”
Use Access Networks to reach clients, not general internet links
IPTV is not audio/video through the internet
IPTV Services
Basic and Premium Television
Interactive TV / Two way communication
HDTV
Video on Demand
Time shifted TV
Instant Messaging
TV Telephony
Gaming and Betting on Demand
Web and e-mail
Why IPTV?
More control over service for user
What to watch and when to watch
More interactive
Better Quality
DVD quality video, CD quality music
Convergence – Single device to watch TV, surf web and video calling
PC is not attractive due to lower picture quality, cost and boot time
IPTV Technical challenges
Bandwidth requirements for streaming
High bandwidth continuously
Last mile is the problem
DSL originally employed for burst (web) traffic, Not support MPEG-2
Need to compress the video streams
Reducing channel change time
Due to multicasting it takes time
Providing VoD
Need to unicast messages
Core Network
High speed data network
Technologies used:
ATM and SONET/SDH
IP and MPLS
Metro Ethernet
IP STB
IPTV hardware and software infra-structure at customer premises
Runs the IPTV middleware at client side
Decrypt the scrambled video stream
Video decoding
Produce composite (analog) video output
Program navigation with EPG
Conclusion
The Open IPTV architecture is very comprehensive
Open IPTV uses the concept of ”managed” and open Internet. The managed part provides guarantees for
content delivery and defines sets of protocols for achieving this