Broadcasting Technologies Overview April 2008

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    Broadcasting Technologies Overview April 2008 - Presentation Transcript

    1. Future Broadcasting Technologies: A view from Canada Communications Research Centre Bernard Caron, Vice-President, Broadcast Technologies Research Communications Research Centre Canada An Agency of Industry Canada Centre de recherches sur les communications Canada Un organisme d’Industrie Canada
    2. Broadcasting Technologies at CRC
      • CRC is the primary technical centre of excellence in broadcasting technologies in Canada, and the only organization with a R&D program and unique facilities dedicated to Broadcasting.
      • CRC provides supports for Spectrum Management to the Canadian Department of Industry.
      • CRC works with Private Industry and other Research organizations through collaborations, Service Contracts and IP licencing in Canada and around the world
    3. Challenges to Over-the-Air Broadcasting
      • Hundreds channels cable, satellite, IPTV…
      • Internet Radio/TV: Universal Access
      • Mobile TV on Telecom networks
      • Wireless Internet Access: Wi-Fi, Wi-Max…
      • Multi-function Handheld devices
      • Personal Audio-Video Recorders
      • Users generated contents
      • Sharing of Broadcast Spectrum
      • Changing regulations
      • Fast evolution of technologies
      • ... you ain’t seen nothing yet
    4. A vision of the evolution of Broadcasting
      • “ Anything, anytime, anywhere…”
      • Choice
      • Mobility
      • Interactivity
      • Platform independence
      • Better quality - HDTV
      • More realism- 3D TV
    5. How is CRC helping you to get there:
      • Mobile broadcasting
      • Improving Coverage
      • Sharing the Broadcast Band
      • 3D TV
    6. Mobile Broadcasting
      • Various distribution technologies
        • 3G wireless networks -- DVB-H
        • ATSC H/M -- DMB
        • Qualcom/MediaFlo -- Wi-Fi/WiMax
      • Broadcasters advantages
        • Spectrum availability
        • Transmission facilities
        • Dual Transmission Mode: Mobile-Fixed (ATSC-H/M DVB-T/H)
        • Own Content
    7. Mobile Broadcasting at CRC
      • Laboratory and Field tests of proposed systems for ATSC H/M
      • Investigations on more efficient Audio/Video compression technologies
        • Wavelet-based codec (CRC-CWT and CRC-WVC)
        • Frame rate conversion (CRC-FRC)
        • Multi-frame motion estimation
        • Bio-inspired audio coding algorithms
        • Contributions to the Video Quality Experts Group (VQEG) for Multimedia applications.
      • Subjective audio/video evaluations
      • Investigations on Multimedia Broadcasting using DAB-DMB technologies in the VHF-UHF Band
      • Video over Wi-Fi and WiMax
      • DVB-H and Satellite Trial
      • Experimental Mobile Multimedia Broadcasting system under evaluation in Montréal.
    8. Need for Improved Broadcasting Coverage
      • Mobile-Handheld reception
      • Portable reception
      • Indoor antenna
      • Replication of Analog Reception area
    9. CRC Improv ing Coverage
      • Distributed transmitters networks (DTN)
        • A number of low-power transmitters replace one centrally located high-power station
        • Coverage can be shaped to reach only populated areas
        • Potential for reduced construction and operating costs as well as spectrum saving
        • Needs for new tower sites may be problematic
      • Investigations on adaptive and directional antenna performance.
      • Coverage Prediction: CRC-COVLAB
        • Can be used with Distributed Transmitters networks
        • See a demo for ATSC H/M at the DTV HOT SPOT
        • Try it free on-line at l rcov.crc.ca
    10. Improvements to ATSC DTV Coverage : Prediction of SFN Coverage Example of CRC-COVLAB prediction for Mobile/Fixed Fixed Mobile
    11. Learning to Share the Broadcast Band
      • Digital dividend after the end of analog transmissions
      • Various systems could share the Broadcast spectrum:
        • Public Safety Mobile Communication
        • IEEE 802.22 Wireless Regional Area Networks (Unlicenced Devices)
        • MediaFlo, DVB-H, DMB
        • ‘’ Wi-Fi’’ in the Broadcast Band
        • FM-IBOC, Digital Radio Mondiale
    12. Sharing the Broadcast Band at CRC
      • Assessment of the impact of new communication systems in the Broadcast band:
        • Public Safety mobile transmission system on DTV
        • IEEE 802.22 Wireless Regional Area Networks (Unlicenced Devices) on DTV
        • Engineering studies for Industry Canada on the impact of new technologies such as IBOC, T-DMB, DVB-H, MediaFlo on spectrum management
      • Assessment of IBOC interference in the FM band
      • Investigation on DRB and Wi-Fi operation in the UHF band
      200 kHz 1 st upper adjacent analog channel 1 st lower adjacent analog channel
    13. 3-D Video
      • Popularity of 3-D Cinema
      • Future Upgrade to HDTV
      • Availability of 3-D Display (Without glasses)
      • Small overhead in term of data rate
      • Better understanding of the 3-D production problems
    14. 3-D Video at CRC
      • Investigation on compression technologies for 3-D video
      • Subjective evaluation of 3-D
      • Conversion of 2-D video
      • programs to 3-D
    15. Software DAB- DMB system s at CRC: Multiplex, Modulators, Channel Simulator and Receivers
    16. The Broadcasting Systems of T omor r ow
      • Large Local Area
      • Wireless
      • Broadband
      • Mobile
      • Flexible: Audio, Mobile TV, HDTV, 3-D
      • Integrated with other telecommunication systems
      • Ideal for mass distribution of
      • multimedia content.
      • An example: Emergency Broadcasting
    17. Conclusions
      • OTA Broadcasting continue to evolve and to play a major role.
      • Radio and Television will be one part of an interactive immersive multimedia experience .
      • Contents will be available through various media and displayed on a variety of devices.
          • Ultimate goal is to get anything, anytime, anywhere …
          • But each application will find its ways
          • CRC-Broadcasting is helping Industry-Canada, the Canadian industry and our international partners to move toward an harmonious transition to a digital and converged world.
    18. Expected Achievement Thank you Communications Research Centre Bernard Caron, Vice-President Broadcast Technologies Research 613-998-2869, bernard.caron@crc.ca www.crc.ca
    19. An example of integration Placeshifting Cable TV IPTV Satellite WI-FI Internet Cellular TV Transmitters Distribution Rights Production Distribution Viewers
    20.  
    21. Improvements to ATSC DTV Coverage : Prediction of Single Transmitter Coverage Example of CRC-COVLAB prediction for Mobile/Fixed Fixed Mobile Coverage Prediction of Hypothetical ATSC – M/H Single Frequency Network in Los Angeles Fixed Mobile

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