#Digital Caribbean: Dr Peter Siebert, DVB Project Office

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#Digital Caribbean: Dr Peter Siebert, DVB Project Office

  1. 1. Comparison of DVB-T2 with 1st Generation DTT Solutions Dr. Peter Siebert DVB Project Office Geneva/Switzerland
  2. 2. Introduction to DVB DVB started in Europe in 1993 – but 100 of its 230 Members are from non-European companies DVB’s members are drawn from: Broadcasters Network operators Manufacturers Regulators There are more than 100 DVB standards DVB‘s purpose is to create and to promote video broadcast standards
  3. 3. DVB: The market leader in digital TV Screen DigestTM study reported that “DVB is the most widely used transmission standard in the world“
  4. 4. Where we are DVB-S/S2 is the standard for Direct-to-Home worldwide DVB-C is deployed widely
  5. 5. DTT Standards World Map
  6. 6. DTT Beauty Contest
  7. 7. What is beauty
  8. 8. Relevant Criteria for DTT Standard Comparison Efficiency (Capacity vs. Robustness) Capacity (how much can I transmit) Robustness (Cost of transmit network) Single Frequency Networks (SFN) Cost Private Sector receive equipment (STB, iDTV) Broadcaster Capital Expenditure (CAPEX) Broadcaster Operational Expenditure (OPEX) Functionality EWS Mobile TV Pay TV Interactivity Local Content
  9. 9. Efficiency
  10. 10. Efficiency
  11. 11. Data rates and C/N for DVB-T2 (6 MHz channel)
  12. 12. Efficiency: Single Frequency Network (SFN) Large Guard Intervall: up to 160 km for one SFN cell 32 k FFT: Efficient use of guard intervall
  13. 13. How to benefit from improved efficieny Higher data rate per channel More programs HDTV quality Less spectrum required (to be used for other services) Improved robustness Lower cost for building the transmit network (CAPEX) Lower cost for operating the network (OPEX) Easier reception (indoor antennas)
  14. 14. Cost
  15. 15. Cost: Private Sector Receive Equipment (STB, iDTV) Prices of consumer equipment are determined by economy of scale and competition DVB technology with 70% world wide market share is available at very low prices Test: Check STB prices on Ali Baba for T2
  16. 16. Cost: Receive Chip Sets (Sony) Second Generation
  17. 17. Cost: Receive Chip Sets (Broadcom) Single Chip SoC
  18. 18. Cost: Receive Chip Sets (ST) Single Chip SoC
  19. 19. Cost: Broadcaster Operational Expenditure (CAPEX) DVB-T2 allows for improved robustness Less transmitter needed Lower transmit power DVB-T2 supports Peak to Average Power Reduction (PAPR) mechanisms Significant savings in network cost
  20. 20. 53 DVB-T2: FFT 32K GI 1/16 (299 µs) 256QAM 3/4 (31.01 Mbps) C/N = 20.3 dB (+ 1.0 dB) DVB-T2: FFT 32K GI 1/16 (299 µs) 256QAM 2/3 (27.57 Mbps) C/N = 18.1 dB (- 1.2 dB) DVB-T2: FFT 32K GI 1/16 (299 µs) 16QAM 2/3 (13.79 Mbps) C/N = 9.1 dB (-10.2 dB) DVB-T2: FFT 32K GI 1/16 (299 ms) 16QAM 3/4 (15.51 Mbps) C/N = 10.4 dB (-8.9 dB) Reference Mode Same Coverage mode Same Payload Mode ISDB-T: FFT 8K GI 1/4 (252 ms) 64QAM 2/3 (14.60 Mbps) C/N = 19.3 dB ( 0.0 dB) (+ 90%) (+ 110%) (+10db) (+ 9db)
  21. 21. Cost: Power Savings with DVB-T2
  22. 22. Cost: Broadcaster Operational Expenditure (OPEX) Satellite to be used for distribution to transmit towers Transmission is done with DVB- S2 Improved robustness allows for less transmitters and/or lower power Reduced cost for electricity (or diesel) Synergie in Service Information between satellite and cable Metadata to be produced only once
  23. 23. Features
  24. 24. Emergency Warning System (EWS) Yes, we can! Based on DVB SI receive devices can display a message and or be switched remotely to a EWS channel USA and Japan are the only two countries with a broadcast EWS solution
  25. 25. MPLP Demo at Broadcast Asia, June 2011
  26. 26. Time 825 Speed: 134.3km/h Mobile TV: DVB-T2 Reception on German Autobahn
  27. 27. T2, T2-Lite and NGH DVB-T2 covers fixed as well as mobile use cases DVB-T2-Lite is basically a subset of T2 to support mobile for terrestrial broadcasters Ideal solution for a broadcast network to start mobile services Will be supported in DVB-T2 chipsets FEF-TDM structure allows total flexibilty Broadcast for fixed and mobile in one channel NGH is the ultimate air interface for all types of mobile broadcast Can be combined with T2 Highest efficiency and operational flexibility T2 T2- Lite NGH
  28. 28. DVB 2nd generation Conditional Access System DVB-CSA3 provides the necessary security for high value content (128 bit key length). About 50% of DVB devices are for Pay-TV
  29. 29. Interactivity DVB supports several interactive solutions: DVB MHP/GEM HbbTV MHEG Wide range of choices for operators of satellite, cable and terrestrial broadcast networks
  30. 30. Relevant Criteria for DTT Standard Selection Efficiency (Capacity vs. Robustness) Capacity (how much can I transmit) Robustness (Cost of transmit network) Single Frequency Networks (SFN) Cost Private Sector receive equipment (STB, iDTV) Broadcaster Capital Expenditure (CAPEX) Broadcaster Operational Expenditure (OPEX) Functionality EWS Mobile TV Pay TV Interactivity Local Content
  31. 31. Demonstration
  32. 32. Demo Parameter
  33. 33. T2/T2-Lite USB Stick Prototype
  34. 34. Promoting Digital TV Broadcasting Worldwide
  35. 35. Membership 2013 Membership Opportunities Information: learn the latest news on DTT worldwide Network Implementation: meet the DTT Industry – broadcasters, regulators, manufacturers and network operators Cooperation: work with industry organisations to co-ordinate common positions and recommendations related to DTT services Access: participate in DigiTAG events attended by national DTT decision makers Marketing: opportunities to promote member business at events
  36. 36. For more information on membership please: www.digitag.org Contact DigiTAG Project Office: Rosemary Smith – smith@digitag.org Nicole Frey – frey@ebu.ch DigiTAG 2.0
  37. 37. Countries where DVB-T2 is deployed Austria Belgium Colombia Croatia Denmark Finland Ghana Haiti Italy Kenya Kyrgyzstan Malawi Namibia New Zealand Nigeria Russia Saudi Arabia Seychelles Suriname Switzerland Thailand Uganda United Kingdom Vietnam Zamibia
  38. 38. DVB’s main achievements
  39. 39. Second Generation Broadcasting Standards Driver for 2nd generation Additional capacity for HD and 3D Improved chip set technology New algorithms New business models Features of 2nd generation Close to theoretical limits Capacity and/or robustness increase Support of new delivery schemes Operational flexibility
  40. 40. Moore‘s law Cramming more components onto integrated circuits By Gordon E. Moore 1965
  41. 41. Spectral Efficiency Source: Parrot (http://dvb.org/news_events/White_Papers/)
  42. 42. Regional Content: DVB-T2 Support regionalised services and SFN
  43. 43. Current activities in DVB: Tomorrow‘s specification
  44. 44. What‘s in the pipeline New versions of CI Plus including a new form factor New satellite specifications DVB adoption of new video coding scheme UHDTV and 3DTV
  45. 45. CI Plus Architecture CI Plus Host CI Plus Module Tuner CA Descram bler CI Scramble r
  46. 46. Do we still need STBs? In Europe most TVs come with digital tuners CI Plus terminates CA Next version CI Plus will also terminate middle-ware
  47. 47. UK goes for IDTVs
  48. 48. Satellite again: In 2004 we thought that the job is done. In the meantime: RCS2 has been published We have added a chapter on wideband transponders to facilitate satellite broadband receivers in Ka band DVB has provided a new specification for interferer detection based on spread spectrum technology (Carrier ID) There will be further extensions to the S2 specification increasing capacity by 20 – 30 % (DVB-Sx)
  49. 49. HEVC: The next Video Coding Standard History of digital video coding standard • 1993: MPEG-2 (digital broadcast TV) • 2003: H.264 (IPTV, HDTV) • 2013: H.265 (OTT, UHDTV, 3DTV) Up to now every 10 years the performance has doubled! DVB will support H.265 for broadcast, IPTV and OTT DVB is also considering UHD and 3DTV based on H.265/HEVC
  50. 50. Bandwidth requirements with H.264
  51. 51. Ultra High Definition Options
  52. 52. UHDTV and HEVC in DVB DVB will define the parameters for a UHDTV Broadcast Profile based on HEVC We have already agreed on 4K (UHD1) There are many other open issues: Frame rate Data rate required How many bits per pixel Delivery schemes (cable, satellite, terrestrial, IPTV) New HDMI needed How to align with BluRay Disc?
  53. 53. 3DTV in DVB Phase 1: Frame compatible approach (done) Phase 2a: Service compatible (done) Phase 2b: Frame compatible – Compatible (started) Phase 3 for 3DTV: „without glasses“ to be discussed in DVB (future work)
  54. 54. Conclusion Broadcast TV will remain important for the big audience TVs with digital tuner integrated and CI Plus support may make STBs obsolet New satellite specifications are on the horizon to bei used mostly for contribution and Satellite News Gathering The next video coding scheme will bring new services like e.g. UHDTV and improved 3DTV ... and I have not mentioned Interactive TV IPTV Second screen support Mobile TV
  55. 55. Thank You!

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