A Seminar on IPTV Internet ProtocolTelevision For Academic

A Seminar on IP-TV [Internet Protocol-Television] For Academic Session 2007 -2008 Submitted to: Prof. R. L. DUA (HOD) Deptt. Of Elec. & Comm. Engg. YIT, Jaipur Submitted by: § Hemant Sharma § B. E. Final Year § Elec. & Comm. Engg. YAGYAVALKYA INSTITUTE OF TECHNOLOGY YIT Lane, Opp. Chokhi Dhani, RIICO Indust. Area, Sitapura, Jaipur-302022

ABOUT TV ! 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 ØHistoric view-TV transmission from towers, distribution over a cable n/w or beamed directly from Satellite (VSAT). ØModern view-TV, Telephone services & high speed internet access will be delivered over present broadband DSL Network on a single connection.

Types Of Transmission 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.

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

The Origin of IP-TV CONVERGENCE IP-TV CABLE (VIDEO) MEDIA TELCO (VOICE) TELECOM ISP (DATA) IT

Definition of IP-TV IPTV essentially has two components: l Part 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. l Part 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.

Technologies involved in IP-TV : 1. Broadband – The key element As per 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.

2. x. DSL • x. DSL 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 x. DSL 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

Some DSL Standards Type Max speed Downstream (Mbps) Max speed Upstream (Mbps) ADSL 8 1. 0 ADSL 2 12 3. 5 ADSL 2+ 24 3. 5 VDSL 52 12 VDSL 2 100

ADSL Modulation Upstream No of Bits Voice Downstream 16 6 15 0 4 25 64 37 255 38 1104 138 139 69 k. Hz Frequency (KHz) Upstream Tone 276 k. Hz Downstream Tone

ADSL 2+ Potential Data Rate, Mbps (downstream) ADSL 2+ Feature Approved by ITU-T in July 2002 Operate within 2. 2 Mhz spectrum Minimized disturbance to/from ADSL 24 Enhancements to traditional ADSL Boost Maximum performance (Down/Up) 12 Mbps/1 Mbps or 8 Mbps/3 Mbps ADSL 2+ 12 Improved DSL Access to both Residential and Business users ADSL 2 Provides ADSL service over longer loop lengths 8 ADSL 1 Km ADSL 2(annex L) 2 Km 3 Km 4 Km 5 Km 6 Km Loop Length, Km

ADSL 2+ Potential

Basic Architecture of ADSL

Extension of ADSL to IP-TV Line RJ 11 Splitter RJ 11 Line ADSL MODEM RJ 11 Splitter Single User with Voice, Data and Video RJ 11 ADSL MODEM RJ 45 Switch Multi user Business Customer RJ 11 RJ 45 Single User with Voice and Data Line Splitter ADSL MODEM RJ 45 STB AV Port

Triple Play Video ADSL Modem Landline ADSL Splitter IPTV Set Top Box (STB) Internet Voice service Jitendra Garg DGM(MPLS& IPTV) 15

Circuit Diagram of Splitter DSL o highpass filter Splitter o Separates the 300 Hz to 3500 Hz voice channel from upstream and downstream channels o Reduces traffic congestion o Pass voice, dial tone, ringing and on/off hook signals o Consists of a lowpass filter (LPF) for POTS and a highpass filter (HPF) for upstream/downstream channels o Passive device LINE lowpass filter TELE

IP-TV NETWORK ARCHITECTURE

COMPRESSION TECHNOLOGY • H. 264 is mainly used • It has 50% more compression efficiency as compared to MPEG -2 • Picture quality is retained at low bit rates • It enables the broadcast of HD over IPTV

Comparison between H. 264 & MPEG 2 H. 264 MPEG 2 Variety of entropy schemes used Fixed entropy technique used Smaller block size varies (4*4, 16*16) Fixed block size (16*16) Have in-block deblocking No such feature Computationally demanding Computationally less demanding Supports HDTV Transmission Supports SDTV Transmission Resolution of 2000, 000 pixels Resolution of 210, 000 pixels Broadcast in 16: 9 format Broadcast in 14: 3 format

SECURITY ISSUES • DIGITAL RIGHTS MANAGEMENT(DRM) • WATERMARKING

Content Services in Triple Play Broadcast type q q q q IPTV Pay TV Hi-Fi Radio Electronic Programme Guide (EPG) Multicast Streaming Live Streaming for VOD Progressive Downloads(Video , gaming, music downloads) On Demand type q q q q Interactive type q q q Interactive TV Video Conferencing Interactive Online Network Gaming Interactive E-Learning Interactive E-Shopping Tele-Medicine Interactive VOD Scheduled Play-out( n-VOD) Scheduled Capture ( n-PVR) Client side Personal Video Recording Pay per View(PPV) Games on Demand Time Shifted TV Others ( Music Download, Music of Demand, Karaoke on Demand, TV based internet access, caller ID pop up) Internet and Voice types q q Vo. IP Browsing on TV E-mail/SMS/MMS from TV Caller ID Popup

User Experience Recommendations, Rating, Time Boxing A Guide That Actually Guides You!

Advantages of IPTV Traditional TV Distribution Proprietary STB lease l Proprietary systems l Tied to single STB vendor technology roadmap Broadcast architecture l No 1: 1 potential without monumental upgrade l l cost Video delivery separate from data Difficult to integrate with Web/PC content and services Would need to shift analog subs to digital to free up bandwidth for IP video (hence free digital STBs offers to move subs off of analog spectrum) Shifting to IP Video requires new IP-STB Little or no interoperability IPTV Cheaper STB l Scale efficiencies and merchant components will ensure cheaper devices and better availability l Thin client will be embedded in various devices (such as XBox) 1: 1 communication will enable l Targeted custom TV services and commerce l Collection of usage data l Simplified integration of IP content and services (ITV - weather, games, photos, music etc. on TV) TV integrated with broadband home devices l The IP STB is the TV’s gateway to digital music, home videos and photos IPTV Reinvents Entertainment in the Home

WHY IP-TV ? Analogue Era Film, Tape Signals Scheduled Push Channels Closed Networks Digital Era Data streams, Files Packets On-Demand Pull Programs, Clips Open Networks

The Forces are Right Bandwidth Requirements New compression technologies reduce bandwidth required Global demand speeds innovation and drives down the cost curve Global Development Deployment Costs New distribution architectures allow delivery of higher bandwidth at a lower cost These developments create video and consumer data growth opportunities Growth Potential

Thank You !