19. Satellite-Fiber Comparison capability Fiber optic cable systems Geo satellite in a global system Meo satellite in a global system Leo satellite in a global system Transmission speed 10 Gbps-3.2 Terabits/second Single sat 1Gbps-10Gbps Single sat 0.5Gbps-5Gbps Single sat 1Gbps-2Gbps Quality of service 10 -11 -10 -12 10 -6 -10 -11 10 -6 -10 -11 10 -2 -10 91 Transmission latency 25 to 50 ms 250 ms 100-150 ms 25-75 ms System availability w/o backup 93 to 99.5% 99.8%(C-Ku band) 99% (Ka band) 99.9%(C-Ku band) 99% (Ka band) 99.5%(L-c-Ku band) 99% (Ka band) Broadcasting capabilities Low to Nil High Low Low Multi-casting capabilities Low High High Medium Trunking capabilities Very High High Medium Low Mobile services Nil Medium-to-High High High
42. Satellite Network Branch Offices Corporate Data Center/HQ Network HUB Corporate Offices Gas Stations Apartment Buildings Residential Internet Some large scale corporate networks have as many as 10,000 nodes
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46. In Conclusion Satellites remain the best utilization used for communications due to their speed and other advantages mentioned in this presentation.
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Editor's Notes
The Satellite Does Best in Complementing Rather Than Competing with Terrestrial Fiber Optic Systems Satellite systems are built and designed with life-spans that can exceed 15 years and have the unique ability to operate maintenance free throughout the entirety of their life. Most failures occur at start or end of life (deployment of antenna and solar arrays, failure to reach proper orbit) Many satellite failures are due to software or operator errors rather than hardware failures. The satellite industry plans for contingencies so when outages do occur, the industry is quick to resolve problems and address customer needs including, if necessary, moving customers to other satellites or transponders, even on a competitors satellite.
