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IGMP – part of Network layer in OSIRTSP – part of Application layer in OSI
In addition to the above benefits IPTV also permits a host of new services - such as:Video on DemandScheduled RecordingScheduled PlaybackDigital SignageBusiness TV channelsRolling Recording
Introduction To Iptv
Basic of IPTV(Internet Protocol Television)<br />By Yuga<br />
Outline<br />What is IPTV?<br />Why IPTV?<br />How IPTV works?<br />IPTV Benefits<br />What features does IPTV offer?<br />Problems with IPTV<br />Conclusions<br />
What is IPTV?<br /> The official definition approved by the International Telecommunication Union focus group on IPTV (ITU-T FG IPTV) is as follows:"IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability."<br /> You can watch Internet TV on a television screen (using Set-Top-Box), computer screen or a mobile device like a cell phone.<br />
As opposed to traditional broadcast television where every home receives the same programming, IPTV allows each consumer to customize their viewing schedule.<br />
Why IPTV<br />First is the widespread adoption of broadband access.<br />Secondly, the Internet has become a familiar tool for consumers.<br />Last, but not least, is the competitive dynamic between traditional fixed telephone service providers and cable companies. Both wish to provide ‘triple play’ services; the ability to deliver a combined service offering of data, voice and video communications.<br />
How IPTV works? Con’t<br />Two primary protocols involved in IPTV:<br />Internet Group Management Protocol (IGMP) V2 –used to change channel- multicast<br />Part of Network layer in OSI<br />Real Time Streaming Protocol (RTSP) – used for VoD – Unicast<br />Part of Application layer in OSI<br />
What are Differences between IPTV and traditional AV solution. <br />
What features does IPTV offer?<br />The biggest difference with today’s distribution of television is that you choose which information you want to have.<br /> Able to have a high capacity two way communication and have the ability to interact with the service provider.<br /> example you request a movie from your TV-guide and the program is delivered to you.<br />You will be able to have VoD(Video on Demand) which is your on personal video store where you can decide when you want to see the movie.<br />EPG(Electronic Program Guide) and PVR(Personal Video Recorder), where the EPG will be fully interactive with your own personal needs. You will also be able to use features like pause, fast forward and rewind when you are watching a movie on your TV.<br />It will be possible to have personalized advertising. You will be able to decide yourself, which kind of advertising you would like to see.<br />
Problems with IPTV<br />Today even though most of the households have access to broadband many of those have to low bandwidth to get an acceptable quality of the media.<br />The networks have to be built so that the End-to-End QoS<br /> can be guaranteed, which is not the case with most of the networks today.<br />Set-top boxes are expensive.<br />If you want to watch another channel on a different TV you will have to buy another box.<br />
Conclusion<br />In traditional television delivery, all programming is broadcast simultaneously. The available program signals flow downstream and the viewer selects which program he wants to watch by changing the channel. <br />IPTV, by contrast, sends only one program at a time. Content remains on the service provider's network and only the program the customer selects is sent to the home. When a viewer changes the channel, a new stream is transmitted from the provider's server directly to the viewer. Like cable TV, IPTV requires a set-top box. <br />