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Network and Architectures Branch Overview (Bits are Bits). Will Ivancic Senior Research Engineer [email protected] 216-433-3494. Areas. Space Communication Aeronautics Communications. Expertise. Network Centric Operation Security, Security, Security! - PowerPoint PPT Presentation
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Glenn Research Center Networks & Architectures BranchCommunications Technology
Will Ivancic
Senior Research Engineer
216-433-3494
Network and Architectures Branch Overview
(Bits are Bits)
Glenn Research Center Networks & Architectures BranchCommunications Technology
2
Areas
• Space Communication• Aeronautics Communications
Glenn Research Center Networks & Architectures BranchCommunications Technology
3
Expertise
• Network Centric Operation– Security, Security, Security!
• Communication Systems Architectures• Communication Protocols• Modeling and Simulation
Glenn Research Center Networks & Architectures BranchCommunications 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
Management4
Glenn Research Center Networks & Architectures BranchCommunications Technology
IEEE802.16 Network Applications
ASRASRASR
RTR/RCAGRTR/RCAGRTR/RCAG
VehicleVehicle
ADS-BStationADS-BStationADS-BStation
ADS-BStationADS-BStationADS-BStation
Security
VehicleVehicle
ASRVOR
Wireless Cable
Asset Tracking
Data Services
LCGSVirtualATCT
HubsWiMax
ATCT
Vendor Networ
k
Vendor Networ
k
WANWAN
HubsWiMax
Glenn Research Center Networks & Architectures BranchCommunications 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/
nextgen-cns-test-bed/
Glenn Research Center Networks & Architectures BranchCommunications Technology
Lunar Surface
7
Glenn Research Center Networks & Architectures BranchCommunications Technology
Real-Time and Store-and-Forward Delivery of Unmanned Airborne Vehicle Sensor Data
8
Glenn Research Center Networks & Architectures BranchCommunications Technology
Aircraft Communications
Aircraft ControlDomain
Aircraft ControlDomain
Airline InformationServices Domain
Airline InformationServices Domain
PassengerInfo. and EntertainServices
Domain
PassengerInfo. and EntertainServices
Domain
Passenger-ownedDevices
Passenger-ownedDevices
Air-GroundNetwork Interface
Air-GroundNetwork Interface
Air-GroundNetwork Interface
Control the AircraftControl the Aircraft Operate the AircraftOperate the Aircraft Inform/Entertain the PassengersInform/Entertain the Passengers
CLOSED DomainCLOSED Domain PRIVATE DomainPRIVATE Domain PUBLIC DomainPUBLIC Domain
Airport Network(e.g., Gatelink)
Passenger-accessed3rd Party Providers
Passenger-accessed3rd Party Providers
Airline-Approved3rd Party Providers
Airline-Approved3rd Party Providers
AirlineAirline
Air Traffic ServiceProviders
Air Traffic ServiceProviders
Air-GroundBroadband Network(e.g., INMARSAT)
Air-GroundDatalink Services(e.g., ACARS)
VHF / HF /SATCOM
WirelessLAN
SATCOM/Cellular
Aircraft
Aircraft ControlDomain
Aircraft ControlDomain
Airline InformationServices Domain
Airline InformationServices Domain
PassengerInfo. and EntertainServices
Domain
PassengerInfo. and EntertainServices
Domain
Passenger-ownedDevices
Passenger-ownedDevices
Air-GroundNetwork Interface
Air-GroundNetwork Interface
Air-GroundNetwork Interface
Control the AircraftControl the Aircraft Operate the AircraftOperate the Aircraft Inform/Entertain the PassengersInform/Entertain the Passengers
CLOSED DomainCLOSED Domain PRIVATE DomainPRIVATE Domain PUBLIC DomainPUBLIC Domain
Airport Network(e.g., Gatelink)
Passenger-accessed3rd Party Providers
Passenger-accessed3rd Party Providers
Airline-Approved3rd Party Providers
Airline-Approved3rd Party Providers
AirlineAirline
Air Traffic ServiceProviders
Air Traffic ServiceProviders
Air-GroundBroadband Network(e.g., INMARSAT)
Air-GroundDatalink Services(e.g., ACARS)
VHF / HF /SATCOM
WirelessLAN
SATCOM/Cellular
Aircraft
Glenn Research Center Networks & Architectures BranchCommunications 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
OperationsCommand 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
Network Partitioning by ServiceArchitecture 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
Glenn Research Center Networks & Architectures BranchCommunications 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)