IPTV new 1

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INTERNET PROTOCOL TV

A.GANESAN

DGM, BSNL Retd)

And Chairman IETE Chennai

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TELECOMMUNICATION NETWORK

Switching Network

Transmission Network

Access Network

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Broadband concepts

http://localhost/var/www/wiki/Image:ADSL_frequency_plan.svg

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An ‘always-on’ data connection

Able to support interactive services

including Internet access Simultaneous availability of Phone

and Internet on the existingTelephone line

Has the capability of the minimumdownload speed of 256 kilo bits persecond (kbps)

What is BROADBAND?

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What is broadband?

Bandwidth equal to and above256 Kbps has been defined as

broadband by TRAI

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Easy registration on phone and web. Telephone will continue to work even in case

of power failure at subscribers end.

‘Use now and pay later’ in telephone bill. Itprovides a means to bill based on Volume ofdata downloaded.

It will provide Multicast Video Services, Video-on-demand such as IPTV in future

Can share Broadband connection to createown LAN network i.e. more than one PC can beconnected.

Salient Features of Broadband

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• always-on broadband access to the Internet

• content based services

• video multicasting• video-on-demand

• interactive gaming

•

audio and video conferencing• ip telephony

• distance learning

Services Offered by broadband

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Messaging: plain and feature rich

Multi-site MPLS VPNs with Quality of

service (QoS) guarantee.

The subscribe will be able to access the aboveservices through Subscriber Service SelectionSystem (SSSS) portal

Services offered

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Modulation Techniques Used in

Broadband

CAP -Carrier less Amplitude Phase Modulation

DMT -Discrete multitone modulation (DMT)

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Broadband Penetration

There are about 150 million Broadbandsubscriber worldwide and are increasing

by about 5,00,000 every month Asia Pacific – 45%

USA – 30%

Europe, Middle East & Africa – 25%

Indian scenario:

Broadband customers —3 million

Targeted growth for 2010---20 million

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TV Penetration 112 Househods have TV

CABLE TV Channels

68 millions cable TV

2 millions DTH

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Broadband Wireless

Technologies 3G Mobile

Based on WCDMA & CDMA

Supports data rates 144 kbps for outdoor mobile environment

384 kbps in low mobility environment

2 mbps in indoor environment

Wi-Fi (Wireless Fidelity) Wireless LAN with Broadband option

Most widely used LAN standard (IEEE 802.11b)

Uses 2.4 Ghz band & delivers 11 mbps of data

over distances of 100 meters

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Broadband Wireline

Technologies DSL-Digital Subscriber line

Technology for high bandwidth to home

and small businesses over ordinary coppertelephone lines

Achievable data rate depends on the

distance and cable impairments

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DSL TechnologiesTechnology ITU-T

StandardDistance Downstream

Data Rate

Upstream

Data Rate

ADSL G-992.1 3.5 Kms 8 Mbps 640 Kbps

Splitterless ADSL G-992.2 4.0 Kms 1.5 Mbps 512 Kbps

ADSL-

Extended Bandwidth

G-992.5 1.5 Kms 16 Mbps 100 Kbps

2 Wire High-Speed DSL G-991.2 3.0 Kms 2312 Kbps 2312 Kbps

4 Wire High-Speed DSL G-991.2 3.0 Kms 4624 Kbps 4624 Kbps

Very High-speed DSL G-993.1 300 Mts 52 Mbps 6-26 Mbps

Very High-speed DSL G-993.1 700 Mts 26 Mbps 26 Mbps

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Broadband Wireline

Technologies Optical Fibre Technologies

PON (Passive Optical Network)

FTTH (Fibre-To-The-Home)

FTTC (Fibre-To-The-Curb)

HFC (Hybrid Fibre Co-axial)

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Internet Protocol

Television

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What is IPTV

Services offered in IPTV

Functional Components in IPTV

IPTV Operation

Implementation issues of IPTV

Market issues of IPTV

IPTV

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What is IPTV

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IPTV is basically a fusion of

voice, video, and data service bundled

in a single format for delivery

result of high bandwidth and

high speed Internet infrastructure

built recently

IPTV

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History

In 1994, ABC's “ World News Now “ was the

first television show to be broadcast over the

Internet, using the CU-SeeMe

Videoconferencing software

IPTV

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IPTV is not PCTV

Video on Demand (VOD) - IPTV's unique appln.,

A combination of multicasting and unicasting

Increasing demand for new value added service.

Advanced compression techniques provides

improved performance.

Deployment costs are still high, but fast falling

IPTV

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IPTV vs Internet TelevisionIPTVSimilar to cable TV service with lot of value

added elements and improved performance

Internet Television

It is an open evolving framework where a

stored contents from small and medium-

sized video producers are accessed through

web

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IPTV is bundled with

- Video on Demand (VOD)

- Voice over IP (VOIP) over phone

- Standard TV channel

- High Definition TV channel

- Web access or browsing

IPTV – Triple Play

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Services offered in IPTV

S i Off d B IPTV

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Two Types are available

*Broadcast type

* On Demand type

Broadcast type Services

- IPTV through Electronic Program Guide (EPG)

- Pay Per View

- Hi-fi radio broadcast through EPG

- Distance Learning

- On line Shopping

Services Offered By IPTV

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Services Offered by IPTV

On Demand Type Services

- Interactive Video On Demand (VoD)

- Time Shifted TV (TSTV)

- Music Downloads Pay Per View (PPV)

- Music on demand

- Games on demand

- Interactive Gaming

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The real-t ime part ic ipat ion in games

by customers watching Telev is ionprograms at home.

The abi l i ty to turn on mult ip le ang lesof an event and watch i t from dualang les s imul taneously using picture-

in-pic ture view ing .

IPTV features

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Provide two -way commun ication for interact ive

television

To reco rd mult ip le broadcasts at any instant

Al lows for P-I-P viewing w ithou t the need for

mul t ip le tuners

Receive cal ler ID info rmation on incom ing call on

TV sc reen whi le watchin g TV

Play video games using TV

IPTV features

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Functional

Components of IPTV

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Functional components

Content Sources-

-VOD Source

-Broadcast Source

-Encoder

Service Nodes-

-VOD Server

-Broadcast Server

Wide Area Distribution Networks

-Backbone network-Access network

Customer Access Links.

Customer Premises Equipment (CPE).

.

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IPTV Architecture

IPTV B i S i

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IPTV Basic Services

ARCHITECTURE

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Midd leware (MW)

Content Protect ion System (CPS)

Central Media Li b ray, Content (VoD )Server

Element Management System (EMS)

Video Head end s ys tem

Ad vert isement Insert ion Server

Directo ry server

Bi l l ing System

Access network

Customer Premises Equipm ent

Network Management System (NMS)

ARCHITECTURE

A hit t B i Bl k

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Broadcast

Head End

VOD

Server

Directory

Server

Middleware

Billing

Server

Element Management

System(EMS)

Network Management System

Core IP

Network

(Broadband) ADSLModem

Architecture –Basic Blocks

IPTV Di t ib ti

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X-ge A

ADSL

terminals

FE

ADSL

terminals

..DSLAM.. X-ge B

X-ge C

ADSL

terminals

FE

ADSL

terminals

..DSLAM..

X-ge DX-ge E

ADSL

terminals

FE

ADSLterminals

..DSLAM..

X-ge F

Tier1 GigE

Aggregation

SWGigE

BBBroadband

RAS

Core

router

IPTV Distribution

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Access network

Broadband network capable of pro v id ing desi redbandw idth to end user as requi red by the con tentappl icat ion.

Network components

Net o k Components

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Middleware

Helps in :

-The Auth ent icat ion o f The users.

- Keeping the pro f i le of all services.

- Users to mod i fy accou nt by

communicat ing wi th the directory server .

- for disp laying the balance of user account.

- Generates CDR and sent to th e bil l ing server .

Network Components

Net o k Components

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Con tent Protect ion Sys tem (CPS)

-secure del ivery of the content us ingdescr ipt ion keys.

Element Management System (EMS)

con tro ls con tent del ivery to the user upon gett ingautho rizat ion from the MW.

keep a record of serv ices del ivered for bi l l ingpurpose.

prov ide on demand type of serv ice

Network Components

Network Components

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Video Head end system

recept ion and storage of

con tents f rom broadcast source

and video sou rce in h igh end servers

Network Components

Network Components

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Advert isement Insert ion Server

Insert ing th e advert isement into the co ntent streams.

Directo ry server

Stor ing the user prof i le along w ith the sett ings and password .

Bi l l ing System

Bil l ing o f con tent services shal l be on either pre-paid

or post paid.

Network Components

Network Components

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Aggregator

The output s tream is connected to a co re IP sw itch calledAgg regat ion sw i tch.

This is used to connect a gateway server at one end and toBRAS at the other end.

Broadband remo te access server(BRAS)

This is the place where the mu lt icast ing is done

DHCP server - Al loc ates IP address to an host STB asand when a user wants to use a

prog ram on TV. The program is selected at the STBby the Electron ic prog ram gu ide EPG.

Uses IGMP – to contro l the membership of an hos t onconf i rmation ho st .

Network Components

Network Components

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The SwitchForwarding the mult icast packet receivedf rom the Encoder to the BroadbandAgg regat ion Switch.

The swi tch does not allow al l outputs to beconnected to al l inputs. The sw itch can actas a test ing po int for the mult icast packets.

Network Components

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Encoder

Inpu t to the Encoder for each chl is in MPEG-2 format

Encoder uses advanced compression techniqu es forconver t ing

High bandw idths to del iverable size

RTP and IP add ress to each Encoder or channel is alsoadded

The ou tput Packet of the Encoder w i l l be a mult icast packet

cons ist ing of : MPEG4 ( bit stream)

Source IP Address

Destinat ion IP Add and

RTP

Network Components

Network Components

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Customer Premise Equ ipment (CPE)

ADSL MODEM

Set Top Bo x

TV set

Remote Control

Set Top Box is required for prov iding Con tent Based Servicesto the users of any IP based netwo rk.

Network Components

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IPTV Backbone Network

One SDTV requires 4 Mb

One HDTV channel requires 20 Mb

Backbone Network of any Service

Provider requires a capacity of

around 800 Mb for delivering

100 SDTV and 20 HDTV channels

This also provides 2 Mb for browsing

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IPTV Operation

IPTV OPERATIONS

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Set Top Box

. STB is an Intelligent device STB del ivers IP based contents to an end user

Inter face to IP based access netwo rk by Access m odem

pro vide con tent p resentat ion in sui table form .

used for Stream ing based content service or/and Webbased brow sing .

STB is prog rammable and suppor t

I. Video codec

- MPEG-2

- MPEG-4

2. Audio Codec

IPTV OPERATIONS

IPTV OPERATIONS

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Set Top Box (STB)

To Decode the cencoded con tent

STB suppo rts two video s treams simul taneously (P-in-P).

It also Suppo rts:

Unicast and Mult icast.

10 bit A /D converter.

CIF (352X288, Common Interm ediate Format in PAL) fo r

video

SIP ( Sessio n Init iat ion Pro toco l) fo rVoIP

Client Softw are for p laying the Con tent on the TV

IPTV OPERATIONS

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SET-TOP BOX

Aminet 130H Ethernet STB with AVC and HDsupport By Visionary Solotions Inc.

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DECODER

AmiNET 110H Decoder for MPEG-2 AVNEncoded Streams

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IP Encoder

AVN 200 MPEG-2 IP Audio-Video Node

By Visionary Solutions Inc USA

IPTV OPERATIONS

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The TV signals received by d ish an tenna are fedto Integrated Receiver Decoder (IRD), whichconverts the RF signals in to d igi tal form .

Its outpu t in MPEG-2 form at is sent to a sp l i t terwhich dis t r ibu tes the dig i tal st ream whichsends it to an ENCODER.

IPTV OPERATIONS

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Transm ission Contro l Protoco l –TCP

Internet Control Message Protoc ol – ICMP

Internet Protocol Contro l Protoc ol –IPCP

Add ress Resolut ion Protocol - ARP

Real Time Stream ing Protoco l – RTSP

Real Time Con trol – (RTCP)

Dynam ic Host Contro l Protoc ol Protoco l - DHCP

Internet Group Management Protoc ol – IGMP

Password A uthent icat ion Protocol – PAP

Chal lenge Handshake Authent icat ion pro toco l –CHAP

Protocols used in IPTV operations

IPTV OPERATIONS

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The Encoder Output is a com pressed videous ing MPEG-4 format

The RTP inform ation and Mult icast IP add ress

are added here

The output is then fed to DSLAM equ ipment inthe Telephone Exchanges

The STB at subscr ibers home converts thereceived signal to the form acceptable by TV .

IPTV OPERATIONS

IPTV Working

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The MPEG-4 Stream in the form of mult icast

group is cont inuously f lowing into the BRAS.

BRAS is con t inuous ly generat ing Generalmembership query to all hosts .

As soon as a viewer start STB and select apart icu lar channel, STB w il l generate a Requestfor a part icular channel to BRAS and p lace a

Membership Repo rt to BRAS.

BRAS wi l l place that speci f ic host in a mult icastgroup , and start forwarding the repl icatedcopies of the stream to that speci f ic host .

IPTV Working

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Chan

nel

Multicast IP

Address RTP port Name 1 225.1.1.1 30120 Aaj -tak

2 225.1.1.2 30120 Head-line today

3 225.1.2.1 30120 BBC-world

4 225.1.2.2 30120 Zee- music5 225.1.3.1 30120 Star-utsav

6 225.1.3.2 30120 Sun-TV

7 225.1.4.1 30120 Eetv-marati

8 225.1.4.2 30120 ETC-punjabi

9 225.1.5.1 30120 Jain-TV

10 225.1.5.2 30120DD-Rajyasabha

Channel_MulticastIP Address_RTP Port List

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Channel

Multicast IP Address RTP port Name

11 225.1.6.1 30120 Akaash-Bangla

12 225.1.6.2 30120 DD-Saptagiri

13 225.1.11.1 30120 DD-national

14 225.1.11.2 30120 DD-Gujarathi

15 225.1.12.1 30120 DD-Nes

16 225.1.12.2 30120 DD-Kashir

17 225.1.13.1 30120 DD-Ne

18 225.1.13.2 30120 MH-1

19 225.1.14.1 30120 DD-punjabhi

20 225.1.14.2 30120 GyanDarshan

21 225.1.15.1 30120 DD-Malayalam

22 225.1.15.2 30120 DD-India

Channel_MulticastIP Address_RTP Port List

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Better QOS by us ing IP/MPLS Netwo rk Quali ty

Aud io & Video Qual ity

Netwo rk capaci ty

Channel changing t ime

Operat ion Support System

Secu ri ty and Reliabi l i ty issues

Righ ts and regulations for content and datadist r ibut ion.

Implementation Issues

IPTV Market

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Forecast is that IPTV marketwill grow to over 27 million household by

end of the decade

-Reliance tied up with Motorola

-Sunmicro systems and Tech

mahendra plans roll-out in2007

-Bharti ready with IPTV plan

-MTNL started IPTV @Rs99 subscription

-BSNL is testing Triple Play

IPTV Market

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