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Mobile Digital Broadcasting
Democratizing Innovation
François Lefebvre, Communications Research Centre Canada
Mobile Convergence




 François Lefebvre, Communications Research Centre Canada
One-to-Many Telecom
                                 Specialized Infrastructure
                                 Efficiency: Spectrum, $/bit
                                       Head of the Long Tail
                                       Very large audiences
                                                       Live




 François Lefebvre, Communications Research Centre Canada
Standards




 François Lefebvre, Communications Research Centre Canada
DAB / DMB
Features
High speed mobility
Capacity: 1.5 Mbps / channel ( 16 Gb / day )
High bitrate AV & Data:
  Typical video to mobile screen: 384-512 kbps
Spectrum:
  Band III : 174 to 240MHz
  L-Band : 1452 to 1492MHz
Modulation: COFDM
Single Frequency Networks


  François Lefebvre, Communications Research Centre Canada
CRC DAB Implementation



                      Transmission




 François Lefebvre, Communications Research Centre Canada
Typical Tx Rack




 François Lefebvre, Communications Research Centre Canada
François Lefebvre, Communications Research Centre Canada
François Lefebvre, Communications Research Centre Canada
François Lefebvre, Communications Research Centre Canada
Software Defined Radio




 François Lefebvre, Communications Research Centre Canada
Software Building Blocks




 François Lefebvre, Communications Research Centre Canada
Pre-Configured Software




 François Lefebvre, Communications Research Centre Canada
“One Click” Transmitter




 François Lefebvre, Communications Research Centre Canada
Low Cost Broadcast Tx




 François Lefebvre, Communications Research Centre Canada
Coverage Simulation




 François Lefebvre, Communications Research Centre Canada
CRC DAB Implementation



                            Reception




 François Lefebvre, Communications Research Centre Canada
Colliding Business Models


                                               ?
                                                              MNO
Broadcaster
                                                            Pay-TV
FTA-TV




 François Lefebvre, Communications Research Centre Canada
Open Handhelds (2007)




 François Lefebvre, Communications Research Centre Canada
No Broadcasting Stack!




 François Lefebvre, Communications Research Centre Canada
Openmokast
                                                           Receiver control

                                                            Demultiplexing

                                                               Application
                                                                decoding


                                                              Presentation




François Lefebvre, Communications Research Centre Canada
Adapt Openmoko Device




 François Lefebvre, Communications Research Centre Canada
100$ 3D Print




 François Lefebvre, Communications Research Centre Canada
Adapt Openmoko Device




 François Lefebvre, Communications Research Centre Canada
Openmokast Prototype




 François Lefebvre, Communications Research Centre Canada
Screenshots




 François Lefebvre, Communications Research Centre Canada
Demo




      http://www.youtube.com/crcmmb
François Lefebvre, Communications Research Centre Canada
Next ?
•   LiveCD: Support more standards: ATSC/MH, …
•   Openmokast: Released TODAY as GPL code
•   Openmokast: Bcast chipsets into open phones
•   Openmokast: Port to Android
•   New Applications
•   OpenBTS as return link
•   Broadcast apps in “App Stores”
•   Micro-broadcasting: events,…
•   Community broadcasting, remote areas,…
•   …?


    François Lefebvre, Communications Research Centre Canada
Thank you!
                                   PROJECTS
                               openmokast.org
                              mmbTools.crc.ca
                              www.crc.ca/mmb


                                       BLOG
                            Broadcasting20.org


                       francois.lefebvre@crc.ca

 François Lefebvre, Communications Research Centre Canada
eComm Presentation

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