Published on

1 Like
  • Be the first to comment

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide


  1. 1. IPTV
  2. 2. Agenda  Introduction.  Architecture.  IPTV Services.  Underlying Protocols.  Contact between User and IPTV.  Privacy and Security.  Transport models.
  3. 3. Introduction
  4. 4. IPTV  Internet Protocol Television(TV + IP).  is a system through which television services are delivered using the Internet protocol suite over a packet-switched network such as the Internet.  is defined as multimedia services delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability.
  5. 5. IPTV and Internet TV.  IPTV   : delivered to TV set, not PC A set-top box (STB) or set-top unit (STU)  Internet TV (ITV):  anyone can create an endpoint and publish that on a global basis. (YouTube)
  6. 6. Why IPTV?  Consumers want more and higher quality service.  IPTV has the potential to offer an interactive, customized experience.  Network infrastructure today has become highly evolved and is required to support converged IP applications.
  7. 7. Architecture  Depending on the network architecture of the service provider  there are two main types of video server architecture that can be considered for IPTV deployment centralized and distributed.
  8. 8. IPTV services  live TV with or without interactivity related to the current TV show.  Time-shifted TV Catch-up TV (replays a TV show that was broadcast hours or days ago) Start-over TV (replays the current TV show from its beginning).  Video On Demand(VOD) browse a catalog of videos, not related to TV programming.
  9. 9. IPTV Protocols The primary underlying protocols:  Internet group management protocol (IGMP): live multicast stream. changing from one live multicast stream to another.  real time streaming protocol (RTSP): based unicast only live and VoD streaming.  Hyper Text Transfer Protocol(HTTP)
  10. 10. Contact between User and IPTV How to subscribe to IPTV ? Constraints to subscribe IPTV How to send from IPTV to User ? How can I get IPTV ?
  11. 11. How to subscribe to IPTV  User can subscribe to it over broadband local networks (LAN). Broadband     support QOS. Multicast , Separation of end user traffic. Differentiate between services. Must support Secure and Robust.
  12. 12. Constraints to subscribe IPTV  Digital TV.  High speed internet connection.  Bandwidth.  Set-top-box
  13. 13. How to send from IPTV to User ?? Sending ways One-to-one (Unicast) One-to-many (Multicast)
  14. 14. One-to-one (Unicast)  A Model required to deliver unique content to a single user.  Point-to-Point connection between user and the media in the network.
  15. 15. One-to-many (Multicast) Beginning  As a single stream that is transported through the network .  Then duplicated for hundreds or even thousands of end-users . Ending  Receiving same data at same time without overloading the network or video server .
  16. 16. One-to-many (Multicast) Multicast 1. Efficiently Controls network traffic 2. Reduces server and CPU loads 3. Eliminates traffic redundancy 4. Makes Multipoint applications possible
  17. 17. Now, How can I get IPTV ??? Distribution Models LIVE content Stored content
  18. 18. LIVE and Stored Content LIVE content  Multicast stream.  Start from where it is.  No control. Stored content  Unicast stream.  Start from beginning.  Control it (play, pause, stop).
  19. 19. Privacy and Security  IPTV The home network must be a closed one.  Users It should be a secure network where access is limited only to users and concerned devices within the home.
  20. 20. Transport Model Transport Model Centralized Distributed
  21. 21. Centralized Model  From one broadcast center.  Easy and simple to manage.  Cheaper.  Bandwidth limitation.
  22. 22. Distributed Model  Several systems.  Synchronization.  More maintenance.  Very reliable.  No limit on usage.
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.