IPTV: How it works?

IPTV or IP Television is a procedure, a way of preparing and distributing Television signs in an IP based data system. Content flows are obtained, demodulated and decrypted if needed, subsequently re-encoded digitally for IP transport maybe with extra compression and new encryption. IPTV indicates, or flows, are distributed in an IP based system and viewed on an iptvcapable screening apparatus, typically a Set Top Box.

Notice: This article discusses construction and operating a whole head end, for the purpose of competing with or replacing a conventional CATV service, to give coverage to a subway or regional location. We’re not talking the deployment of pre-multiplexed articles such as Comcast Corporation’s “head end from the skies” offering or Satellite Master Antenna TV (SMATV) systems.

The Essential Actions to delivering IPTV to the end user

Obtaining the Programming – The huge majority of the content, will be obtained via satellite, requiring a head end facility. Added content, local community associates, might be obtained off-air in either analog or digital off air format, or perhaps terrestrially, as an ASI or SDI flow supplied over fiber optic transfer from a nearby broadcaster.
Encoding the flows

The digital or analog material that has been obtained needs to be re-encoded for multicast IP transfer. This phase would also encircle the encryption which will be necessary from the programmers.

IPTV Distribution Network

The distribution system clearly has to be some sort of wide area network, since it ought to provide IPTV services to their customers’ homes. This system should have sufficient bandwidth together with the capability to implement Quality of Service (QoS) to the end customers to provide IPTV content. These requirements could be achieved with the blending and matching of numerous present technologies.


The end user, the TV customer, anticipates a consumer friendly watching experience. Typically exhibited in the form of an Electronic Program Guide. The middleware introduces this to the viewer through the Set Top Box.