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Overview of Internet via Satellite

Overview of Internet via Satellite. Internet via Satellite: Present and Future Trends GIBN Workshop Vienna, Austria December 3, 1998. Dr. Ramon P. De Paula NASA HQ Washington D.C. IP over Satellite Market Prediction. Internet over Satellite (IP) today: $178 Million ( US Dollars)

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Overview of Internet via Satellite

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  1. Overview of Internet via Satellite Internet via Satellite: Present and Future Trends GIBN Workshop Vienna, Austria December 3, 1998 Dr. Ramon P. De Paula NASA HQ Washington D.C.

  2. IP over Satellite Market Prediction • Internet over Satellite (IP) today: • $178 Million ( US Dollars) • Providers: Intelsat, Hughes, Orion, etc. • Satellite IP Market will grow to: • US $2 Billion by 2002 • US $30 Billion by year 2007 • propel by Ka and V band systems ISP providers worldwide have generated a significant demand for Sat services and demand keeps increasing

  3. Teleglobe Panamsat Orion Hughes Net Serv. Agcast GlobeComm Fantastic Corp. NetAccess Intelsat Gilat Vocaltec Comm. NetSat Express and others Companies Active in IP over Satellite today

  4. Examples of Current Internet Services via Satellite Hughes DirecPC From http://www.direcpc.com

  5. Examples of Current Internet Services via Satellite Gilat/GE Spacenet Skystar Advantage From http://www.gilat.com

  6. Examples of Current Internet Services via Satellite From http://www.intelsat.com

  7. COMPETITION • TV distribution SONET Rings • Trunking; overseas Undersea cable • Mobile services Cellular, PCS • Remote telephony Wireless local loop, LMDS • DBS/DTH Cable (digital) • Interactive data xDSL, Cable modems,,, • VSATs Fiber • Fiber technology is improving rapidly. Optical Amplifiers, DWDM, switches, are decreasing transport costs and increasing capability.

  8. Challenges to Implement Internet via Satellites • Policy • Access to spectrum • Trade and security • Access to markets • International Cooperation • Technical • Launch vehicles • Seamless Interoperability/Standards/Protocols • Long Term Advanced Technologies

  9. Spectrum: Issues and Challenges • New and proposed satellite and terrestrial services have dramatically increased demands on allocated spectrum - • Extreme Competition from: • Personal communications systems. • Mobile systems. • Local-Multipoint Distribution Systems (LMDS). • Interactive Multimedia. • Broadcasting. • Etc. • GEO satellites slots at traditional C-and Ku-Bands are nearly full worldwide increasing demand for new frequency bands. • Proposed LEO systems require worldwide allocation of same frequency spectrum

  10. INTEROPERABILITY INTEROPERABILITY ENABLES COMMUNICATION AND INTELLIGENT INTERACTION BETWEEN SYSTEMS OF DISSIMILAR NETWORK ARCHITECTURES AND PROTOCOLS, USING EQUIPMENT MADE BY DIFFERENT VENDORS AND OWNED BY DIFFERENT SERVICE PROVIDERS.

  11. Downlinks Uplink Land Line Network Uplink Site Reliable Multicasting Over Satellite • Multicast technology enables data to be simultaneously transmitted to many network users, but not necessarily all sites on a network • Permits a network node to transmit one message to one or more nodes in a single operation • Benefits • Can provide huge savings in bandwidth by transmitting only a single copy of data (subset of broadcasting) • Impact • A large retail chain store uses satellite multicast to distribute software updates • Multicasting a 1 Mbyte file to 250 clients now takes 4 minutes • Unicast originally took over 6 hours • Relieve terrestrial bandwidth bottlenecks • Applications • Software distribution & updates • Product inventory • Kiosk multimedia programming • Internet web caching • Data warehousing

  12. Future Trends in IP over Satellites • Improved IP Protocol / Compatible with Sat Channel • Voice over IP • Lower Cost Storage Devices • Advanced Hardware/Software to handle IP traffic over Satellites • New Networks and Traffic Management • New Technologies in several key areas: • Antennas, Switching, MMIC, Bandwidth use, etc. • New Satellite Systems using new frequencies - Ka, V, and Optical

  13. PLANNED KA BAND SYSTEMS* FPS:Fast Packet Switch; BBS:Baseband Switch ** Celestri does not exist Teledesic/Motorolanow partners *Total: 279 “Orbital Slots”, 804 Satellites

  14. Satellite Systems Planned for V Band • CAI Satellite Com. Inc. EO (1) • Denali Telecom LLC Molniya (9) • GE Americom GEO (11) • Globalstar L.P. LEO (80) • Hughes Com. Inc. Expressway GEO (14) “ SpaceCast GEO (6) “ StarLynx GEO (4) & MEO (20) • LEO One USA Corp. LEO (48) • Lockheed Martin GEO (9) • Loral Space & Com. Ltd. GEO (10) • Motorola M-Star LEO (72) • Orbital Sciences Corp. MEO (7) • PanAmSat GEO (12) • Spectrum Astro. Inc. GEO (20) • Teledesic LEO (72) • TRW GEO (4) & MEO (15)

  15. Conclusions • IP Over Satellites Today Works !!!! • IP over satellites not the issue anymore !! • Delay over Sat Link not a problem • What Data services the Customer Wants ? • What new services and applications will futures satellite constellations provide ?

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