We live in the age of the digital packet. Documents, images, music, phone calls all get chopped up, propelled through networks, and reassembled at the other end according to Internet protocol. So why not TV? Today, IPTV (Internet Protocol Television) is creating headlines all over the world. This mass publicity is the result of numerous instances and stories depicting its humble deployments and its future. IPTV is a very useful system, through which you can receive both TV and video signals along with other multimedia services by means of your Internet connection. In nutshell, it is nothing but a broadband connection and a system to deliver various programs of television using the Internet protocol (i.e., language) over computer networks. It is important to remember that IPTV is not like any ordinary television program broadcast through the Internet, but rather it is unique in itself. Its contour is represented by a closed, proprietary TV system which is similar to the cable services present today. But, in contrast, the delivery of IPTV is made via IP-based secure channels, which result in a sharp increase in content distribution control. It is important to remember that IPTV is not like any ordinary television program broadcast through the Internet, but rather it is unique in itself. Its contour is represented by a closed, proprietary TV system which is similar to the cable services present today. But, in contrast, the delivery of IPTV is made via IP-based secure channels, which result in a sharp increase in content distribution control.

1. Gandhi Institute of Technology and Management
Bhubaneswar
INTERNET PROTOCOL
TELEVISION (IP-TV)
Presented by: Anil Kumar Mahapatra
Registration No. 0901304102
Electronics and Communication Engineering

2. CONTENTS
 INTRODUCTION
 EVOLUTION OF BROADCASTING TECHNOLOGY
 THE ORIGIN OF IP-TV
 TECHNOLOGY USED IN IP-TV
 EXTENSION OF ADSL TO IPTV
 IP-TV NETWORK ARCHITECTURE
 COMPRESSION TECHNOLGY
 SERVICES & USER EXPERIENCE
 ADVANTAGES & IMPACT OF IP-TV
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3. ABOUT TELEVISION
Television (TV): Specifies the medium of
communication that operates through the
transmission of information to the users as
pictures and sounds for their interpretation &
entertainment.
MODES OF TV TRANSMISSION
Historic view-TV transmission from
towers, distribution over a cable n/w or beamed
directly from Satellite (VSAT).
Modern view-TV, Telephone services & high
speed internet access will be delivered over
present broadband DSL Network on a single
connection.
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4. TYPES OF TRANSMISSIONS
MULTICASTING- A multicast stream is sent to a multicast
group internet address. When a user selects a live channel, a
request to join the group of viewers associated with the
relevant multicast address is sent from the set top box to the
equipment in the local telephone exchange.
UNICASTING- A video-on-demand service is unique to each
viewer & delivered as a unicast stream. It is sent to a single
internet address in response to a request from the receiver.
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5. Evolution [of the TV]
IPTV ≠ Evolution –> IPTV = Redefinition of “Broadcast”
IPTV
Digital, HDTV
16:9 aspect ratio
NTSC Color
Standard
Electronic TV
4:3 aspect ratio
Mechanical Televisor
7:3 aspect ratio
t
1884-1928 1935 1953 2000 2006
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6. THE ORIGIN OF IP-TV
A TRIPLE PLAY SERVICE
IP-TV
CABLE TELCO ISP
(VIDEO) (VOICE) (DATA)
MEDIA TELECOM IT
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7. DEFINITION OF INTERNET
PROTOCOL TELEVISION (IP-TV)
IPTV essentially has two components:
1. Internet Protocol (IP): specifies the format of
packets and the addressing scheme. The protocol
establishes a virtual connection between a
destination and a source. IP allows you to address a
package of information and drop it in the
system, but there’s no direct link between you and
the recipient.
2. Television (TV): specifies the medium of
communication that operates through the
transmission of pictures and sounds. We all know
TV, but here we are referring to the services that are
offered for the TV, like linear and on-demand
programming.
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8. TECHNOLOGY USED IN IP-TV
1.BROADBAND – THE KEY ELEMENT
As Per The Telecom Regulatory Authority of India (TRAI):
“An always-on data connection that is able to
support interactive services, and has the capability of
minimum download speed of 256 kbps”
Note: This definition for throughput may undergo up
gradation in the future.
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9. TECHNOLOGY USED IN IP-TV
2. xDSL – xDIGITAL SUBSCRIBER LINES
xDSL Family Tree
Symmetric DSL:
Provide identical data rates upstream & downstream
Asymmetric DSL:
Provide relatively lower rates upstream but higher rates
downstream
Four main variations of xDSL exist:
ADSL-Asymmetrical Digital Sub’s Line
HDSL-High bit/data rate Digital Sub’s Line
SDSL- Symmetric Digital Sub’s Line
VDSL-Very-high-data-rate Digital Sub’s Line
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10. DIFFERENT xDSL STANDARDS
Type Max speed Max speed
Downstream Upstream
(Mbps) (Mbps)
ADSL 8 1.0
ADSL2 12 3.5
ADSL2+ 24 3.5
VDSL 52 12
VDSL2 100 100
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11. BASIC ARCHITECTURE OF ADSL
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Image Courtesy: www.btcpl.net

12. EXTENSION OF ADSL TO IP-TV
Line RJ 11 ADSL Line RJ 11 ADSL
Splitter Splitter
RJ 11 RJ 11 MODEM RJ 11 RJ 11 MODEM
RJ 11 RJ 11 RJ 45 RJ 45
RJ 45
Single User with
Single User with
Voice, Data and Video RJ 45
Voice and Data
STB
AV Port
Line RJ 11 ADSL
Splitter
RJ 11 RJ 11 MODEM
RJ 45
Switch
Multi user Business
Customer
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13. TRIPLE PLAY SETUP USING ADSL
MODEM & SPLITTER
Video
ADSL Modem
IPTV Set Top Box (STB)
Landline
ADSL
Internet
Splitter
Voice service
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14. ADSL SPLITTER BLOCK DIAGRAM &
FUNCTIONS
DSL
highpass LINE
filter
Splitter
1. Separates the 300 Hz to 3500 Hz voice
lowpass
channel from upstream and downstream
filter
channels
2. Reduces traffic congestion
3. Pass voice, dial tone, ringing and on/off
hook signals TELE
4. Consists of a low pass filter (LPF) for POTS
and a high pass filter (HPF) for
upstream/downstream channels.
5. Passive device 14

15. IP – TV NETWORK ARCHITECTURE
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Image Courtesy: www.althos.com

16. COMPRESSION TECHNOLOGY
USED IN IP - TV
1. H.264 is mainly used.
2. It has 50% more compression
efficiency as compared to MPEG-2.
3. Picture quality is retained at low bit
rates.
4. It enables the broadcast of HD over
IPTV.
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17. COMPARISION BETWEEN
H.264 AND MPEG2
H.264 MPEG2
Computationally Computationally less
demanding demanding
Supports HDTV Supports SDTV Transmission
Transmission
Resolution of 2000,000 Resolution of 210,000 pixels
pixels
Broadcast in 16:9 format Broadcast in 14:3 format
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18. Content Services in IP - TV Triple Play
Broadcast type On Demand type
 IPTV  Interactive VOD
 Pay TV  Scheduled Play-out( n-VOD)
 Hi-Fi Radio  Scheduled Capture ( n-PVR)
 Electronic Programme Guide  Client side Personal Video
(EPG) Recording
 Multicast Streaming  Pay per View(PPV)
 Live Streaming for VOD  Games on Demand
 Progressive  Time Shifted TV
Downloads(Video, gaming, musi  Others ( Music Download, Music
c downloads) on Demand, Karaoke on
Interactive type Demand, TV based internet
 Interactive TV access, caller ID pop up)
 Video Conferencing
 Interactive Online Network Internet and Voice types
Gaming  VoIP
 Interactive E-Learning  Browsing on TV
 Interactive E-Shopping  E-mail/SMS/MMS from TV
 Tele-Medicine  Caller ID Popup
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19. User Experience
Recommendations, R
ating, Time Boxing a
Guide That Actually
Guides You!
(Image Courtesy: www.microsoft.com)
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20. ADVANTAGES OF IPTV
Traditional TV Distribution IPTV
Proprietary STB lease Cheaper STB
 Proprietary systems  Scale efficiencies and merchant
 Tied to single STB vendor technology components will ensure cheaper devices
roadmap and better availability
 Thin client will be embedded in various
devices (such as XBox)
Broadcast architecture 1:1 communication will enable
 No 1:1 potential without monumental  Targeted custom TV services and
upgrade cost commerce
 Video delivery separate from data  Collection of usage data
 Difficult to integrate with Web/PC content  Simplified integration of IP content and
and services. services (ITV - weather, games, photos,
music etc. on TV)
Little or no interoperability TV integrated with broadband
home devices
 The IP STB is the TV’s gateway to digital
music, home videos and photos
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21. IMPACT OF IP - TV
Bandwidth Requirements
New compression technologies reduce bandwidth required.
Global Development
Global demand speeds innovation and drives down the cost
curve.
Deployment Costs
New distribution architectures allow delivery of higher bandwidth
at a lower cost.
Growth Potential
These developments create video and consumer data growth
opportunities
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22. REFERENCES
WEB REFERENCES:
 http://www.faqs.org
 http://www.btcpl.net/
 http://en.wikipedia.org/wiki/IPTV
 http://www.althos.com
 http://www.microsoft.com
BOOKS:
 Next Generation IPTV Services and Technologies
By Gerard O'Driscol
 Understanding IPTV
By Gilbert Held
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