Keyword: Congestion

Briefs: Aerospace
It is widely believed that Advanced Air Mobility is poised to have a significant societal impact in the coming years to move people and cargo more rapidly and efficiently.
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Briefs: Transportation
This technology could help control driverless cars and automated warehouses.
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Briefs: Aerospace
Center/TRACON Automation System Software Suite

Air traffic control within the US is getting more complicated as the number of aircraft increases. There is a great need to increase the efficiency of the system so that flight delays are minimized without having to build new airports or runways. At the same time, safety must be maintained so that...

Briefs: Aerospace
Miles-In-Trail with Passback Restrictions for Use in Air Traffic Management

NASA has developed a unique innovation to compute passed back spacing requirements in air traffic management. The air traffic managers of the National Airspace System (NAS) in the United States regularly implement various Traffic Management Initiatives (TMI) to handle...

Briefs: Sensors/Data Acquisition

Convective weather systems, i.e., thunderstorms, are the leading cause of flight delay in U.S. airspace. Airline dispatchers must file their flight plans 1 to 2 hours before takeoff, and are often required to...

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Briefs: Software
Contact Graph Routing

Contact Graph Routing (CGR) is a dynamic routing system that computes routes through a time-varying topology of scheduled communication contacts in a network based on the DTN (Delay-Tolerant Networking) architecture. It is designed to enable dynamic selection of data transmission routes in a space network based on DTN. This...

Briefs: Electronics & Computers
System-Level Integration of Mass Memory

A report discusses integrating multiple memory modules on the high-speed serial interconnect (IEEE 1393) that is used by a spacecraft’s inter-module communications in order to ease data congestion and provide for a scalable, strong, flexible system that can meet new system-level mass memory...

Briefs: Aerospace
Delay Banking for Managing Air Traffic

Delay banking has been invented to enhance air-traffic management in a way that would increase the degree of fairness in assigning arrival, departure, and en-route delays and trajectory deviations to aircraft impacted by congestion in the national airspace system. In delay banking, an aircraft operator...

Briefs: Software
Improving UDP/IP Transmission Without Increasing Congestion

Datagram Retransmission (DGR) is a computer program that, within certain limits, ensures the reception of each datagram transmitted under the User Datagram Protocol/Internet Protocol. [User Datagram Protocol (UDP) is considered unreliable because it does not involve a reliability-...

Briefs: Electronics & Computers

A scheme for organizing and controlling sensor webs is based on artificial neural networks. [Sensor webs were described in “Sensor Webs” (NPO-20616), NASA Tech Briefs, Vol. 23, No. 10...

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