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Network and Architectures Branch Overview (Bits are Bits)

Network and Architectures Branch Overview (Bits are Bits). Will Ivancic Senior Research Engineer william.d.ivancic@nasa.gov 216-433-3494. Areas. Space Communication Aeronautics Communications. Expertise. Network Centric Operation Security, Security, Security!

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Network and Architectures Branch Overview (Bits are Bits)

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  1. Network and Architectures Branch Overview(Bits are Bits) Will Ivancic Senior Research Engineer william.d.ivancic@nasa.gov 216-433-3494

  2. Areas • Space Communication • Aeronautics Communications

  3. Expertise • Network Centric Operation • Security, Security, Security! • Communication Systems Architectures • Communication Protocols • Modeling and Simulation

  4. Projects • Aeronautics • Air Marshals (secure network communications) • Vehicle Health and Maintenance • Airport Surface Wireless • Mobile Networking • Space • Earth Science • Sensorweb • UAV Communication • Lunar Surface Wireless • Disconnection Tolerant Networks (DTN) • NASA Communication SBIR Program Management

  5. IEEE802.16 Network Applications RTR/RCAG RTR/RCAG ADS - B ADS ADS - - B B Station RTR/RCAG Station Station LCGS Virtual ATCT ASR ASR WiMax ASR Hubs Hubs VOR ASR ADS ADS - - B B Wireless Cable Station Station Security Asset Tracking ADS - B Station Data Services Vendor Network Vehicle Vehicle ATCT WAN WiMax Vehicle Vehicle

  6. Sensis Corporation MLAT surveillance (18 RUs) and 802.11fixed wireless comm network Installed at 3 Cleveland airports (CLE, BKL, LPR) and NASA Glenn Research Center Operate in unlicensed 2.4 GHz band ITT Corporation in process of installing 802.16 mobile and fixed wireless comm network at CLE and GRC Base stations (2) and CPE (6) GRC holds 7 licenses in 5.1 GHz band Modifications planned for GRC’s “THEVAN” and potential use of S-3 or T-34 for emulation of transportable assets and mobile users http://nextgentestbed.com/ http://acast.grc.nasa.gov/main/projects/nextgen-cns-test-bed/ NextGen CNS Test Bed

  7. Lunar Surface

  8. Real-Time and Store-and-Forward Delivery of Unmanned Airborne Vehicle Sensor Data

  9. Aircraft Communications

  10. How Do You Select and Implement the Routing Path? • Low Rate VHF • Reliable • Low Latency Destination Network (for Entertainment) • High Speed SatCom Network • Globally Available • Affected by Weather • Higher Bandwidth • High Latency • High Cost • Low Speed SatCom Network • Globally Available • Low Bandwidth • High Latency • Very High Cost • Redundant Entertainment Mobile Network Command and Control Operations • High Speed Terrestrial • Not Available when Mobile • High Bandwidth • Low latency • Lower Cost • High Speed LOS Network • Globally Available • High Bandwidth • Low Latency • Lower Security • Moderate Cost Internet Destination Network (for Operations) Destination Network (for Command & Control) How do you decide which path the data should take? How do you cause the network(s) to route the data via this path?

  11. Network Partitioning by ServiceArchitecture Example NSPs/Airlines/Framers/Suppliers/etc • QoS & Security Service Levels for: • Network Control • Voice over IP • High Priority • Special Projects • General Purpose Security Perimeter Security Mgt PIES Networks are logically partitioned. Many logical networks share a common physical infrastructure. QoS can be managed by both network & flow Net-Mgt & Routing VOIP Network Infra. AOC ATC PIES Data Center

  12. Antenna Systems • We need to share radio systems. • We cannot have separate radios for each service. • Note, this picture does not show: • Satellite links • Passenger service links • Gate links (WiFi) • Gate links (umbilical cord)

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