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Displaying 401 - 425 of 1414

A Simulation Framework for Industrial Wireless Networks and Process Control Systems

May 6, 2016
Author(s)
Yongkang Liu, Richard Candell, Nader Moayeri, Kang B. Lee
Factory and process automation systems are increasingly employing information and communications technologies to facilitate data sharing and analysis in integrated control operations. Wireless connections provide flexible access to a variety of field

Vibrational Modes of Multilayered Ceramic Capacitors

April 28, 2016
Author(s)
Kirsten L. Peterson, Ward L. Johnson, Sudook A. Kim, Paul R. Heyliger
Micron-scale spacing of interleaved electrodes and high-dielectric ceramics in multilayer ceramic capacitors (MLCCs) provide exceptionally high capacitances in small volumes. This has led to MLCCs being the preferred type of capacitor in a wide range of

Public Safety Analytics R&D Roadmap

April 19, 2016
Author(s)
Tracy A. McElvaney, Ryan Felts, Marc Leh
The public safety community is in a period of great transition. Over the next 20 years, technology advancements will increase accessibility of data/video applications to public safety, and allow for the eventual migration of voice communications from

Multi-purpose Configurable Range for Antenna Testing Up To 220 GHz*

April 9, 2016
Author(s)
David R. Novotny, Michael H. Francis, Ronald C. Wittmann, Josh Gordon, Jeffrey R. Guerrieri, Alexandra Curtin
NIST has developed a multi-purpose test range for performing several types of antenna testing including spherical, cylindrical and planar near-field scanning as well as extrapolation measurements. This range uses a commercial, offthe- shelf, six-axis robot

Absorption Cross Section Measurements of a Human Body in a Reverberation Chamber

February 8, 2016
Author(s)
Damir Senic, Antonio Sarolic, Zbigniew M. Joskiewicz, Christopher L. Holloway
We provide the results of human body absorption cross section (ACS) measurements. The setup was based on the reverberation chamber as a well-known measurement environment capable of performing ACS measurements. The approach was supported by reference

A Regret Matching Strategy Framework for Inter-BAN Interference Mitigation

February 4, 2016
Author(s)
Vladimir Marbukh, Kamran Sayrafian, Martina Barbi, Mehdi Alasti
A Body Area Network (BAN) is a radio standard for wireless connectivity of wearable and implantable sensors located inside or in close proximity to the human body. Medical and some other applications impose stringent constraints on battery powered BAN

Large-Signal-Network-Analyzer Round Robin

February 1, 2016
Author(s)
Dylan F. Williams, Paul D. Hale, Catherine A. Remley, Gustavo Avolio, Dominique Schreurs, Diogo C. Ribeiro, Pawel Barmuta, Gian Piero Gibiino, Mohammad Rajabi, Arkadiusz Lewandowski, Jaros?aw Szatkowski, Kuangda Wang
This paper describes tests of the calibration-comparison method as an approach to assessing the measurement accuracy of large-signal network analyzer calibrations. We show that having one trusted reference calibration allows the calibration accuracy of the

A Simulation Study of the LTE Interference on WiFi Signal Detection

January 6, 2016
Author(s)
Yao Ma, Daniel G. Kuester, Jason B. Coder, William F. Young
To address the spectrum scarcity problem and enhance spectrum utilization efficiency, spectrum sharing and coexistence of different wireless communication systems are important ongoing research topics. Unlicensed use of the ISM band by the long-term

Spectrum Sensing with WLAN Access Points

January 5, 2016
Author(s)
Jason Coder, Ryan T. Jacobs, Vivian Musser
With wireless communication becoming more and more common in simple everyday devices, the available spectrum is quickly filling up and the risk of interference is increasing. This interference could be a slight nuisance to or it could be a more significant

Testing Spectrum Sensing Networks by UAV

January 5, 2016
Author(s)
Dan Kuester, Ryan T. Jacobs, Yao Ma, Jason Coder
We consider here the use of hovering unmanned aerial vehicles (UAVs) to test spectrum sensing capabilities of Citizen's Broadband Radio Service (CBRS) systems at 3.5 GHz. Aircraft transmit synthesized LTE or pulsed radar modulation to excite spectrum
Displaying 401 - 425 of 1414
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