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CMPT771 Presentation Xu Cheng Internet Protocol Television (IPTV)

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Presentation on theme: "CMPT771 Presentation Xu Cheng Internet Protocol Television (IPTV)"— Presentation transcript:

1 CMPT771 Presentation Xu Cheng Internet Protocol Television (IPTV)

2 Outline Introduction Architecture Type of Service Underlying Protocols Conclusion

3 Introduction What is IPTV? IPTV is a system through which digital television service is delivered using the Internet architecture and networking methods, instead of delivered through traditional radio frequency broadcast, satellite signal, and cable television formats IPTV and Internet TV IPTV delivered to TV set, not PC IP set-top box (STB) IPTV is provided by a few LARGE telecom providers Internet TV: anyone can create an endpoint and publish that on a global basis. (YouTube) They are competitors

4 Introduction Why is IPTV? Network infrastructure today has become highly evolved and is required to support converged IP applications such as video, voice and data (triple play) IPTV will provide better quality of service than Internet streaming video IPTV has the potential to offer an interactive, customized experience The telco operators’ weapon in the fight for market share

5 Architecture Content sources IPTV service nodes Wide area distribution network Subscriber

6 Type of Service Broadcast/Multicast Regularly scheduled programs sent to a large number of subscribers Subscribers tune to a specific channel Subscribers cannot influence the playback

7 Type of Service Video-on-Demand (VoD) Stored videos are sent to subscribers on request Subscribers receive their own copy of the video Subscribers can control playback – VCR operation

8 Underlying Protocols IGMP – Internet Group Management Protocol Multicast specification PIM (Protocol-Independent Multicast)

9 Underlying Protocols RTSP – Real Time Streaming Protocol Client-server application layer protocol For user to control display RTSP is out-of-band protocol (similar to FTP)

10 Conclusion Advantages Triple Play Interactivity VoD Challenges High bandwidth requirement Being compared to traditional TV – the gold standard Channel change time Still in the early stage, but an important factor in the video marketplace

11 Reference ternet_television_key.htm ternet_television_key.htm

12 Question

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