Internet Protocol Television

DEFINATIONDEFINATION

Internet Protocol Internet Protocol televisiontelevision ( (IPTVIPTV) is a system ) is a system through which Internet through which Internet television services are delivered television services are delivered using the architecture and using the architecture and networking methods of networking methods of the Internet Protocol Suite over the Internet Protocol Suite over a packet-switched network a packet-switched network infrastructureinfrastructure..

HISTORYHISTORY

In 1994, ABC's World News Now was the In 1994, ABC's World News Now was the first television show to be broadcast over the first television show to be broadcast over the Internet.The term IPTV first appeared in 1995 with Internet.The term IPTV first appeared in 1995 with the founding of Precept Software by Judith the founding of Precept Software by Judith Estrin and Bill Carrico.Estrin and Bill Carrico.

JUDITH ESTRIN Bill Carrico

In the coming years, residential IPTV is In the coming years, residential IPTV is expected to grow at a brisk pace as expected to grow at a brisk pace as

broadband was available to more than broadband was available to more than 200 million households worldwide in the 200 million households worldwide in the

year 2005, projected to grow to 400 million year 2005, projected to grow to 400 million by the year 2010. by the year 2010.

FUTURE

MARKETSMARKETS

Europe and Asia are the leading territories in Europe and Asia are the leading territories in terms of the over-all number of subscribers. The terms of the over-all number of subscribers. The global IPTV market revenues are forecasted to global IPTV market revenues are forecasted to grow from US$12 billion in 2009 to US$38 billion grow from US$12 billion in 2009 to US$38 billion in 2013.in 2013.

     

Countries where IPTV is available in at least some parts of the countryCountries where IPTV is available in at least some parts of the country

Elements Of IPTV

TV Head-end VOD platform Interactive Portal Delivery Network Home Gateway Users set top box

Users set top box

PROTOCOLS

In standards-based IPTV systems, the primary underlying protocols used are:

Live TV VOD (video-on-demand) NPVR (network-based personal video

recorder)

LIVE TV

IPTV via Satellite

The use of satellite to carry IP is fundamental to overcoming the greatest shortcoming of IPTV over terrestrial cables the speed/bandwidth of the connection.

Hybrid IPTV

Hybrid IPTV refers to the combination of traditional broadcast TV services and video delivered over either managed IP networks or the public Internet.

Hybrid Set Top Box

ADVANTAGES A switched IP network also allows

for the delivery of significantly more content and functionality.

1.Interactivity2.VOD (video on demand)

Interactivity:Interactivity:

An IP-based platform also allows significant opportunities to make the TV viewing experience more interactive and personalized.

Video On Demand:Video On Demand:

IPTV technology is bringing Video-on-demand (VoD) to television which permits a customer to browse an online program or film catalog, to watch trailers and to then select a selected recording.

LIMITATIONS

IPTV is sensitive to packet loss and delays if the streamed data is unreliable. IPTV has strict minimum speed requirements in order to facilitate the right number of frames per second to deliver moving pictures. This means that the limited connection speed/bandwidth available for a large IPTV customer base can reduce the service quality delivered.

VENDORS

Some major telecoms vendors are also active in this space, notably Alcatel-Lucent, Ericsson, NEC, Nokia Siemens Networks, Thomson, Huawei, and ZTE, as are some IT houses, led by Microsoft.

IPTV RegulationsIPTV Regulations

Historically, broadcast television Historically, broadcast television has been regulated differently has been regulated differently than telecommunications. As than telecommunications. As IPTV allows TV and VoD to be IPTV allows TV and VoD to be transmitted over IP networks new transmitted over IP networks new regulatory issues arise. regulatory issues arise.

1. CHETNA CHUPHAL (R.no-13)

2.VARTIKA GUPTA (R.no-14)

3.NIKITA BHARADWAJ (R.no-16)

4.VAISHALI BHATT (R.no-11)

5.SHREYA NEGI (R.no-15)