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New Opportunities through New New Opportunities through New TechnologiesTechnologies
Wireless and Satellite CommunicationsWireless and Satellite Communications
Jack Rigley
Vice President
Satellite Communications Research
Communications Research CentreAug 25, 2000
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OutlineOutline
• Types of Digital Communications Systems– how do you connect to the information highway?
• Why Wireless?• Brief overview of Terrestrial Wireless and
Satellite broadband communications
• Why this is important.
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Canada - One PerspectiveCanada - One Perspective
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“Making Canada the Making Canada the
most connected nationmost connected nation
in the world”in the world”
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16000 schools connected to the Internet - March 1999
10% by satellite
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Digital Communications SystemsDigital Communications Systems
•Plain Old Telephone System (POTS) - 56kbps
•Digital Subscriber Line (DSL)- 8 Mbps
•Cable Modem - 4 Mbps
•Wireless 10 - 100Mbps
•Fibre Optics - 1 Gbps $1,000/user
$10/user
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Wired SystemsWired Systems
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Two Types of WirelessTwo Types of Wireless
• Terrestrial Wireless
• Satellite Communications
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Terrestrial WirelessTerrestrial Wireless
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Why Terrestrial Wireless?Why Terrestrial Wireless?• Alternative to fibre and copper wire• New technology: deliver today’s services and
meet tomorrow’s demands• Low start-up costs: need to install base stations
only, “pay as you go”, viable for low penetration rates
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What is LMCS/LMDS?What is LMCS/LMDS?Local Multipoint Communication System/Local Multipoint Communication System/
Local Multipoint Distribution SystemLocal Multipoint Distribution System
an access technology for the delivery of the following services:
• voice/telephone
• data
• internet access
• high speed broadband access
• video broadcast
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antennaservice area
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Satellite CommunicationsSatellite Communications
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Ubiquitous Coverage - same level of service
Affordability
Rapid deployment - instant infrastructure
Geostationary Earth Orbit36,000 km
Arthur C. Clarke, 1945
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Internet & Broadband Networks
Remote Communities
Schools
Business
HospitalsTelecommuters
Gateways
Anik F2
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An ExampleAn ExampleOctober 1996:
Children at the Milton J Rubenstein Museum of Science and technology (MOST) in Syracuse NY participated in a live tour of Ottawa’s Aviation Museum via broadband satellite communications link
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Near FutureNear Future
• Terrestrial broadband systems licensed and starting to roll out around the world.
• Broadband Multimedia Satellite systems beginning services this year with many more to be launched the next 5 years, providing global broadband access.
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Get Ready