04-04-2011, 02:03 PM
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INTRODUCTION
IPTV is a system used to deliver digital television services to the consumers who are
registered subscribers for this system.
Often, this service is provided together with Video facility on demand.
In addition to this, there is provision to include Internet services such as web access and Voice
over Internet Protocol (VoIP).
In cases when internet service is also provided, it may be called Triple Play.
IPTV, essentially has two components:
• Internet Protocol (IP): the format of packets and the addressing scheme for a network.
• Television (TV): specifies the medium of communication that operates through the transmission of pictures and sounds.
PURPOSE OF IPTV
Unlimited Possibilities
Cost –Multicast replacing broadcast
REAL VoD
Ability to search the web for a movie
Triple Play –combining Voice, Video and Data
Interactive communication with the audience
Interactive communication between consumers using IM
PVR (Personal Video Recorder) –accessible from anywhere
provides all digital, two ways connected, unlimited channels, and personalized TV.
IPTV NETWORK ELEMENTS
IPTV COMPONENTS:
Video Head End: point in network at which linear (broadcast TV) and on-demand (movies) content captured and formatted for distribution over IP network.
Video Server: computer-based devices connected to large storage systems. Video content, previously encoded, is stored either on disk or in large banks of RAM.