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. 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. 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. 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. 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. 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. 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. 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. Constraints to subscribe IPTV
Digital TV.
High speed internet connection.
Bandwidth.
Set-top-box
13. How to send from IPTV to User ??
Sending ways
One-to-one
(Unicast)
One-to-many
(Multicast)
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. 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 .
17. Now, How can I get IPTV ???
Distribution
Models
LIVE
content
Stored
content
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. 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.