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

2. Glenn Research Center Networks & Architectures Branch Communications Technology 2 Areas Space Communication Aeronautics Communications

3. Glenn Research Center Networks & Architectures Branch Communications Technology 3 Expertise Network Centric Operation –Security, Security, Security! Communication Systems Architectures Communication Protocols Modeling and Simulation

4. Glenn Research Center Networks & Architectures Branch Communications Technology 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 4

5. Glenn Research Center Networks & Architectures Branch Communications Technology IEEE802.16 Network Applications ASR RTR/RCAG Vehicle ADS-B Station ADS-B Station ADS-B Station ADS-B Station ADS-B Station ADS-B Station Security Vehicle ASR VOR Wireless Cable Asset Tracking Data Services LCGS VirtualATCT Hubs WiMax ATCT Vendor Network WAN Hubs WiMax

6. Glenn Research Center Networks & Architectures Branch Communications Technology NextGen CNS Test Bed 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/next gen-cns-test-bed/http://acast.grc.nasa.gov/main/projects/next gen-cns-test-bed/

7. Glenn Research Center Networks & Architectures Branch Communications Technology Lunar Surface 7

8. Glenn Research Center Networks & Architectures Branch Communications Technology Real-Time and Store-and-Forward Delivery of Unmanned Airborne Vehicle Sensor Data 8

9. Glenn Research Center Networks & Architectures Branch Communications Technology Aircraft Communications

10. Glenn Research Center Networks & Architectures Branch Communications Technology 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 High Speed LOS Network Globally Available High Bandwidth Low Latency Lower Security Moderate Cost High Speed Terrestrial Not Available when Mobile High Bandwidth Low latency Lower Cost Operations Command and Control Mobile Network How do you decide which path the data should take? How do you cause the network(s) to route the data via this path? Destination Network (for Operations) Destination Network (for Command & Control) Internet Entertainment How Do You Select and Implement the Routing Path? Destination Network (for Entertainment) Low Rate VHF Reliable Low Latency

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

12. Glenn Research Center Networks & Architectures Branch Communications Technology 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)