new opportunities through new technologies wireless and satellite communications jack rigley vice...
TRANSCRIPT
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
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.
Canada - One PerspectiveCanada - One Perspective
“Making Canada the Making Canada the
most connected nationmost connected nation
in the world”in the world”
16000 schools connected to the Internet - March 1999
10% by satellite
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
Wired SystemsWired Systems
Two Types of WirelessTwo Types of Wireless
• Terrestrial Wireless
• Satellite Communications
Terrestrial WirelessTerrestrial Wireless
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
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
antennaservice area
Satellite CommunicationsSatellite Communications
Ubiquitous Coverage - same level of service
Affordability
Rapid deployment - instant infrastructure
Geostationary Earth Orbit36,000 km
Arthur C. Clarke, 1945
Internet & Broadband Networks
Remote Communities
Schools
Business
HospitalsTelecommuters
Gateways
Anik F2
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
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.
Get Ready