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Communications Technology Laboratory

Projects/Programs

Displaying 126 - 150 of 152
Software Defined and Virtual Networks

Software Defined Virtual Networks

Ongoing
Background Data networks have enabled extraordinary growth in capabilities such as email, the web, and social media; and today form the technical basis for our information-centric economy [1]. However, current network architectures and processes for technical evolution cannot support the complexity
AnechoicChamber

Spectrum Coexistence Metrology

Ongoing
The overarching goal of the Coexistence Project is to support the development, evaluation, and optimization of spectrum sharing techniques. These techniques include methods to model, simulate, and physically measure the ability of wireless communications systems to maintain their functional
Spectrum Sensing and Noise

Spectrum Sensing and Noise

Ongoing
Reports in the NIST Technical Notes series were extensive measurements of radiated noise. Researchers also made key early contributions to standardizing guided-wave noise measurements in microwave systems. These contributions continue to underpin our ongoing work, but basic applications and hardware
NBIT

Spectrum Sharing & Sensing

Ongoing
The presence of large numbers of licensed and unlicensed spectrum users has already increased the environmental noise floor well above conventional thermal noise levels. Nevertheless, a quantitative assessment of the existing noise floor in today’s communication world is not yet available. As a

Spectrum Tracking in Power Grid Systems

Completed
The increasing deployment of residential renewables and an extensive use of nonlinear devices in the distribution system can produce undesirable harmonic distortions. Such distortions can severely impact phase/frequency estimation in power systems, especially distributed grid systems. For grid

State Estimation for Uncertain Power Systems

Completed
The deployment of renewable resources in distributed grid systems poses a set of new challenges mainly due to their variability and dependency on climate parameters, which can have a major impact on the system parameters that are needed to measure power flow and state estimation. More precisely, a

Synchrophasor Networks for Grid monitoring

Completed
It is well accepted that the Smart Grid will employ a variety of networking technologies. Although there has been tremendous advancement in networking technologies from an architectural point of view, those for smart grid applications need to be designed to ensure a high degree of reliability, self

Systems Analysis Integration

Ongoing
Purpose & Goal The purpose of the SAI Project is to reduce redundant and inconsistent information about systems and their analysis across the multiple engineering disciplines involved. Redundant and inconsistent information exists between: Systems and analysis models: discipline-specific analysis

Systems Analysis Integration for Smart Manufacturing Operations

Completed
Objective: Develop methods and protocols to facilitate analysis of smart manufacturing operations, by enabling efficient integration of smart manufacturing systems models and engineering analysis models. Technical Idea: Smart manufacturing system operations are difficult to manage because

Thermal Noise Metrology

Ongoing
Customer Needs Noise is a crucial consideration in designing or assessing the performance of virtually any electronic device or system that involves detection or processing of a signal. This includes communications systems, such as cellular phones and home entertainment systems, as well as systems

Trusted Spectrum Testing

Ongoing
COEXISTENCE METRICS The Trusted Spectrum Testing program focuses on coexistence metrics and testing methods for wireless systems in shared-spectrum environments. With the goal of understanding a system's response and impact on a local radio frequency environment, our RF Technology Division measures
Trustworthy Intelligent Networks Project

Trustworthy Intelligent Networks

Ongoing
Our current research efforts include: The application of AI/ML techniques to detect abuse of the Domain Name System (DNS). The development of measurement techniques to characterize the robustness of AI/ML approaches to botnet detection. The application of AI/ML techniques to detect anomalies in the

Trustworthy Networks Program

Ongoing
The need for Trustworthy Networking Internet Society Report on the Future of the Internet “Perhaps the most pressing danger to the future of the Internet is the rising scope and breadth of Cyber Threats.” “Addressing cyber threats should be the priority” “The scale of cyberattacks is steadily
Trustworthy Network of Things

Trustworthy Networks of Things

Ongoing
Our work focuses on network-centric approaches to improve the security and robustness of large scale deployments of IoT devices. The research and development of software-defined networking technologies in support of IoT security. The design and IETF standardization of Manufacturer Usage Description
Ultra-dense networks

Ultra-dense Networks

Ongoing
Propagation and system modeling: New propagation models are needed for ultra-dense networks. Driven by legacy cellular systems, most models currently available are tower-to-ground with base stations typically at 30 m and above. Device-to-device links, however, will be ground-to-ground: picocells on
USGv6 Program

USGv6 Program

Ongoing
OMB has directed [ OMB-2020, OMB-2010, OMB-2005] the National Institute of Standards and Technology (NIST) to develop the technical infrastructure (standards and testing) necessary to support wide-scale adoption of IPv6 in the US Government (USG). In response, NIST developed a technical standards
Satellite pscr

Vehicular Network System

Ongoing
The Middle Class Tax Relief and Job Creation Act of 2012 (H.R. 3630) appropriated $7 billion for the establishment of a nationwide interoperable public safety broadband network under FirstNet, an independent authority in the National Telecommunications and Information Administration (NTIA). FirstNet

Waveform Measurements of Radars Operating in the 3.5 GHz Band

Ongoing
This NASCTN effort is coordinated with the Department of Defense (DOD), and the results of this project will support the spectrum regulators as they develop a certification process for Spectrum Access Systems (SAS) and the associated Environmental Sensing Capability (ESC) that may be deployed in

Waveform Metrology Project

Ongoing
Optical measurement techniques: NIST uses the electro-optic sampling (EOS) technique to measure the vector response of photodiodes and provide phase traceability for commercial instrumentation, such as large-signal network analyzers, lightwave component analyzers, vector signal analyzers

Wide-area Monitoring and Control of Smart Grid

Completed
Objective: To develop and verify innovative sensing systems and take full advantage of existing ones such as smart meters, PMUs, Merging Units (Mus), and other intelligent electric devices (IEDs), to enable greater electric grid resiliency, reliability, flexibility, and sustainability through

Wireless Access Networks

Completed
MIMO is a most attractive multi-antenna technique that has been adopted by many emerging wireless communication standards, such as Wireless LAN (WLAN) and fifth generation wireless (5G), owing to the achievable antenna array, multiplexing, and diversity gain. In order to improve link reliability

Wireless Coexistence

Ongoing
What is Wireless Coexistence? Wireless coexistence is the capability of multiple wireless devices and services in the same geographical area to access the same RF spectrum band simultaneously without causing harmful interference to each other. In other words, can they all operate successfully and

Wireless M2M Network For Power Grid

Completed
In conventional transmission systems, wired sensor technologies are largely used in power plants and substations to control and monitor critical parameters. The distribution system does not normally have the support of any infrastructure network. Despite the fact that wired technologies offer a good
Workshop floor

Wireless Systems for Industrial Environments

Completed
Objective: The Wireless Systems for Industrial Environments (WSIE) project will deliver comprehensive, measurement science-based guidelines in the selection, deployment, and optimization of the wireless technologies in specific manufacturing environments; and research that advances the state of