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BIT MEERUT
BY MUKESH KUMAR
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*IPTV is used for mainly three purposeCOMMERCE
COMMUNICATION
ENTERTAINMENT
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IPTV is a system through which digitaltelevision service is delivered usingthe Internet architecture andnetworking methods, instead ofdelivered through traditional radiofrequency broadcast, satellite signal,and cable television formats
IPTV and Internet TV (competitors) IPTV delivered to TV set, not PC
IP set-top box (STB) IPTV is provided by a few LARGEtelecom providers Internet TV: anyone can create anendpoint and publish that on a globalbasis. (YouTube)
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Internet TV IPTV
Transport Use generalinternet
Use dedicated,private network
GeographicalReach
Can be accessfrom anywhere in
the globe
Limited by serviceprovider
Service quality Not guaranteed Guarantees highquality audio andvideo
AccessMechanism
A PC with mediaplayer
Set-Top-Box mostof the time
ContentGeneration
Use own content Provided byexisting TV
broadcasters
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Basic and
PremiumTelevision
Interactive TV /Two waycommunication
HDTV
Video on Demand
Time shifted TV
Instant Messaging Gaming and
Betting onDemand
Web and e-mail
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More control over service for user What to watch and when to watch
More interactive
Better Quality
DVD quality video, CD quality music
Personalization
Convergence Single device to watch
TV, surf web and video calling
PC is not attractive due to lower
picture quality, cost and boot time
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Factors helped the
growth
Digitization of
content
Development of
compression
techniques Growth in
Broadband use
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IPTV Content Delivery:
TV Head End
IPTV Middleware VOD Systems
Media Content Protection Systems
(DRM)
IP STB
Content
Production
ContentAggregation
Content
Delivery
Content
Reproduction
Program
Production
TV
Stations
IPTV
Service
Providers
TV SetsEnd User
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Bandwidth for access link
4 Mbps per channel for SDTV
HDTV: 20 Mbps per channel
VoD: 15.5 Mbps per channel for HDTV
Quality of Experience (QoE) Step
beyond QoS
QoE
QoS
Low delay, jitterand packet loss
Low downtime,maintenance intervalsand channel changetime
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Bandwidth requirements for
streaming High bandwidth continuously
Last mile is the problem
DSL originally employed for burst(web) traffic, Not support MPEG-2
Need to compress the video
streams
Reducing channel change time
Due to multicasting it takes time
Providing VoD
Need to unicast messages
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Access
Network
NationalHead End
Regional
Head End
HomeNetwork
IP CoreNetwork
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Acquiring video from different sources Video Encoding VoD delivering Content security
Conditional Access System (CAS) Digital Rights Management (DRM)
EPG Server
OBSS Subscribermanagement system
MPEG
Encoder
Media
Stream
er
CAS DRM
MPEG
Encode
r
IPTVDeliveryNetwork
Live TV
VoD Server
OBS
S
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High speed data network
Technologies used:
ATM and SONET/SDH()
IP and MPLS
Metro Ethernet
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From IPTV DataCenter to the
subscriber
1.Fiber
2.DSL
3.Cable TV
4.Satellite5.Wireless
Broadband
6.Internet
65.00%
22.00%
11.00% 2.00%
DSL
Cable
modem
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IPTV hardware and software infra-
structure at customer premises
Runs the IPTV middleware at clientside
Decrypt the scrambled video stream
Video decoding Produce composite (analog) video
output
Program navigation with EPG
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User wants towatch TV
channel
IP-STBconnects to
appropriatemulticast group
IP-STBrecieves
packets andencodes it
IP-STB recievespackets, encodes
it and sends tooutput device
Userwatches
TV
channel
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Hardware drivers and media
codec
Operating system and networkstack
IPTV Client
TCP/IP Stack
TV browser
Various plug-ins
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Video Encoding
Improvement in compression to
reduce BW requirement
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TV set become a all in one box Replace the PC for entertainment
(Limit it for programming,
documenting) Everything (e-mail
reading, FB,
answsurfing, video
calls) from TV
remote controller
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REFERENCES
www.digitalopportunity.org/
www.rapidtvnews.com/
www.iptv-news.com/ www.brown.edu/
www.dslreports.com/
http://www.digitalopportunity.org/http://www.rapidtvnews.com/http://www.iptv-news.com/http://www.iptv-news.com/http://www.iptv-news.com/http://www.brown.edu/http://www.dslreports.com/http://www.dslreports.com/http://www.brown.edu/http://www.iptv-news.com/http://www.iptv-news.com/http://www.iptv-news.com/http://www.iptv-news.com/http://www.rapidtvnews.com/http://www.digitalopportunity.org/8/2/2019 Iptv Presentation Report
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