Transcript Satellite Technology in Practical Business Applications

Satellite Technology in Practical
Business Applications
Michael J. O’Donnell
MSIT 526
Presentation Outline
• History and Development of Satellite
•
•
•
•
Technology
Satellite Operation and Types of Satellites
Satellite Network Topologies
Benefits of Satellites over Terrestrial
Networks
Current Satellite Solutions
Arthur C. Clark
• “Extra-terrestrial Relays”
1945.
• Three 24hr manned
Orbiter to distribute
television signals.
Dr. Harold Rosen, SYNCOM II
• Dr. Harold Rosen
Communication Satellite Act 1962
• Build an international
satellite
• Resulted in COMSAT
in 1965.
• Early Bird
INTELSAT IV
• 12 transponders vice one
• Backbone of international
communications
PanAmSat
• Mr. Rene Anselmo
• 1984-1st privately
designed and operated
Satellite in U.S.
Orion
• 1st to use VSAT for
Business Applications
• Japan, India, Middle
East, and Latin America
biggest users of satellite
Motorola’s Iridium Project
• 77 LEO satellites,
$5 Billion dollars
• Chapter 13 after 474
days of service
• Bought for $25M
INMARSAT’s BGAN
• Leading Provider of Mobile Satellite Services
• Next generation of satellite voice, video, and
data communicate
• http://broadband.inmarsat.com/about/BGAN_v
ideo.aspx?language=EN&textonly=False
Satellite Operation
Low Earth Orbit (LEO)
• Travel at high speeds, circle earth in 90 min.
Medium Earth Orbit (MEO)
• Normally for satellites that cover the poles.
Placed in an elliptical orbit.
GSO (Best type)
• 22,282 miles above earth, same direct and speed of
earth, 24 hours trip, View 1/3 of earth
BGAN Footprint
Network Topologies
Simplex
Duplex
Point to Multipoint
Mobile Antenna Systems
Star
Mesh
Simplex
• Broadcast transmissions such as TV, video
and radio services.
Duplex
• Voice Telephony transport
• Data and IP transport Corporate networks
• TV and Broadcast program contribution and
distribution
Point to Multipoint
• Corporate networks, including VSAT services and
business television.
• Video and broadcast distribution, including Directto-Home Internet services.
Mobile Antenna Systems
• Satellite News Gathering
• Special Event Backhaul and Broadcasting
• Maritime services
Star Network
• Corporate Networks
• Distance Learning
Mesh Network
• National and International Telephony and Data
networks
• Rural Telephony
Benefits of Satellites over
Terrestial Networks
Universal
Versatile
Reliable
Expandable
Flexible
Availability
Satellite Problems and Solutions
Echo Problems- Fixed using echo cancelers
Transmission Delay Problems:
ALOHA protocol
Delay Control Unit (Spoofing)
Cyclic Redundancy Check
Still need Line of Sight
Solar Cycles and Heavy weather conditions
still adversely affect performance.
Determining Satellite Needs for Your
Business
Technology Risk
Coverage
Transmission Quality
Satellite Cost
Case Study- AMECO
INTELSAT- Top Ten Satellite World Provider
Domestic Long-haul Shipping Company
Railroad, truck, airlift
High data transmission, Inventory Control,
Complete Zone area coverage.
Solution- GXB Business Broadband
• Broadband Voice, data, and Video
• 5.25 Mbps outbound, 2.25 Mbps inbound
• Higher throughput compared to competing platforms
Future of Satellite
• Government, Military, and Developing
Countries
• Mobile Satellite Services
• BGAN is the future.