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Displaying 176 - 200 of 1410

Measurements of IP3 and P1dB for Spectrum Monitoring with Software Defined Radios

March 30, 2022
Author(s)
Mike McNulty, Dazhen Gu, Dan Kuester, Payam Nayeri
This paper discusses methodology for characterizing linearity summary parameters of software-defined radio receivers. First, we introduce a highly automated testbed for 1-dB compression point (P1dB) and third-order input intercept point (IIP3). With this

Monte Carlo Augmented Channel Estimator

March 3, 2022
Author(s)
Alec Weiss, Atef Elsherbeni, Jeanne Quimby, Jake Rezac
We have developed a novel Monte Carlo-augmented channel estimator for millimeter-wave orthogonal frequency division multiplexing systems To better estimate and correct a transmitted orthogonal frequency division multiplexed signal by incorporating the

Specifying and Reasoning about CPS through the Lens of the NIST CPS Framework

March 3, 2022
Author(s)
Thanh Nguyen, Matthew Bundas, Tran Son, Marcello Balduccini, Kathleen Campbell Garwood, Edward Griffor
This paper introduces a formal definition of a Cyber-Physical System (CPS) in the spirit of the CPS Framework proposed by the National Institute of Standards and Technology (NIST). It shows that using this definition, various problems related to concerns

Smart Cities and Communities: A Key Performance Indicators Framework

February 24, 2022
Author(s)
Martin Serrano, Edward Griffor, David A. Wollman, Michael Dunaway, Martin Burns, Sokwoo Rhee, Chris Greer
This publication presents research findings and scientific work that advance the development and progression of smart city and community measurement methodology. The term 'smart,' as used in the phrase 'smart cities,' is defined here as the efficient use

Advanced Wireless Test Platform Information Request Report

February 18, 2022
Author(s)
Melissa Midzor, Sumit Roy
This document is a compilation of self-reported information from Federal government agencies provided in response to an Advanced Wireless Test Platforms (AWTP) Information Request by the AWTP Team co-chairs in April 2021. This compliments the November 2020

Empirical Differences in LTE Open- and Closed-Loop Power Control

February 10, 2022
Author(s)
Azizollah Kord
We present the empirical Physical Uplink Shared Channel radiated power of a User Equipment in a commercial Long-Term Evolution Frequency-Division Duplex system in open- and closed-Loop power control. We present new insights, targeted on power control, from

Welcome to SAMURAI's documentation!

January 13, 2022
Author(s)
Alec Weiss, Jeanne Quimby, Rod Leonhardt, Ben Jamroz, Peter Vouras, Kate Remley, Dylan Williams
The National Institute of Standards and Technology (NIST) Communication Technology Laboratory (CTL) developed the Synthetic Aperture Measurement with Uncertainties and Angle of Arrival (SAMURAI) millimeter-wave testbed and technique. SAMURAI utilizes a

Head Rotation Model for VR System Level Simulations

January 10, 2022
Author(s)
Steve Blandino, Tanguy Ropitault, Raied Caromi, Nada T. Golmie
The paper proposes a flexible mathematical time-correlated model, by leveraging experimental data adopted from recent measurements, to describe the head rotation in virtual reality applications. Virtual Reality (VR) promises immersive experience in diverse

Optical Fiber Time Delay Comparison between NIST and LAMETRO

January 10, 2022
Author(s)
Tasshi Dennis, Johnny Jimenez
We describe the results of a bilateral measurement comparison of optical fiber time delay between the National Institute of Standards and Technology (NIST, USA) and Laboratorio de Metrología, Instituto Costarricense de Electricidad (LAMETRO-ICE, Costa Rica

On Convergence of the Upper Bound on the Ratio of Gain to Quality Factor

December 6, 2021
Author(s)
Alex Yuffa, Marc Valdez, Benoit Derat
An antenna's practical far-field distance can be estimated from the upper bound on the ratio of its gain to quality factor. This upper bound is an infinite series that can be truncated based on the desired far-field accuracy. We investigate the convergence
Displaying 176 - 200 of 1410
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