22-02-2011, 12:24 PM
presented by:
Dalia Mohamed Mahmoud
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Internet Via Satellite
The Internet “Bucket” is Far From Full…
Only 5% of the world’s population use the Internet
Penetration rate in North America is only 45%
Internet Over Satellites: A Summary
INTERNET over INTELSAT’s satellites:
-Over 80% of African countries use INTELSAT for their Internet traffic with Europe and North America
-INTELSAT carries more than 10x36 MHz of Internet traffic
Internet Delivery via Satellites: What are the Drivers?
Rapid and easy implementation
Network congestion bypass
High quality
Delivering Cost savings
Scalable capacity
IP multicast
Symmetric & asymmetric configurations
Benefits of 2-way Internet via Satellite
Deployable almost anywhere
No phone connection required
Low cost
Small antenna, variety of packages
Easy installation
One hour process, within days of order
High speed and performance
Always-on connection; 20+ times faster than ISDN
Drivers Unique to Africa
Insufficient terrestrial facilities, no cable connectivity - leading to demand for satellite solutions
Lack of Cross-border or regional backbones
Local Web content development increasing
Hosts went up from 290 (1995) to over 10,000 (1998) excluding RSA; leading to a dramatic increase in demand for bandwidth
The factors above are driving growth
1995 South Africa had 64kbps links
Today, 17 countries have 512kbps satellite links or more
Kenya, Nigeria, RSA have 8 Mbps or more satellite links in service
Asymmetry
Internet traffic is asymmetric
Ratio of request traffic to return traffic is typically 1:5
Host location of Internet data is predominantly in North America (75% by some estimates)
Terrestrial networks typically offer symmetrical links; Not cost effective