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Advanced communications

Wireless (RF)

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Displaying 176 - 200 of 1205

Evaluation of Timers Related to ProSe-based UE-to-Network Relays

March 24, 2021
Author(s)
Aziza Ben Mosbah, Samantha Gamboa Quintiliani, Richard A. Rouil
User Equipment (UE)-to-Network Relay functionality was introduced in Release 13 of the Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) to extend and improve user connectivity using the sidelink (SL) channels. The UE-to-Network Relay

Geometrical-Empirical Channel Propagation Model for Human Presence at 60 GHz

March 2, 2021
Author(s)
Camillo Gentile, Anmol Bhardwaj, Derek Caudill, Peter B. Papazian, Jack Chuang, David Michelson
Previous efforts to develop simulation and/or measurement-based channel propagation models for the effect of human blockage on millimeter-wave communication systems have yielded important results, but lack either accuracy, generality, or simplicity. To

AWS-3 LTE Impacts on Aeronautical Mobile Telemetry

February 25, 2021
Author(s)
William F. Young, Duncan McGillivray, Adam Wunderlich, Mark Krangle, Jack Sklar, Aric Sanders, Keith Forsyth, Mark A. Lofquist, Dan Kuester
This technical report details an effort to design, demonstrate, and validate a test methodology to measure the impacts of Long Term Evolution (LTE) User Equipment (UE) emissions in the advanced wireless services 3 (AWS-3) band on aeronautical mobile

NB-IoT Devices in Reverberation Chambers: A Comprehensive Uncertainty Analysis

February 17, 2021
Author(s)
Catherine Remley, Anouk Hubrechsen, Robert Jones, Robert Horansky, Vincent Neylon, Laurens A. Bronckers
New protocols related to internet-of-things applications may introduce previously unnoticed measurement effects in reverberation chambers due to the narrowband nature of these protocols. Such technologies also require less loading to meet the coherence

Wireless User Requirements for the Factory Workcell

February 8, 2021
Author(s)
Karl Montgomery, Richard Candell, Mohamed Hany, Yongkang Liu
Wireless communication is becoming crucial to advanced manufacturing. Industry 4.0 and Smart Manufacturing depend on networked industrial automation systems. The term Industrial Internet of Things (IIoT) has been used to describe the deployment of

Correction of the Measured Phase of the Radiation Pattern of Millimeter-Wave Antennas

December 14, 2020
Author(s)
Antonius van den Biggelaar, Ben Jamroz, Dylan Williams, A. B. Smolders, U. Johannsen
The results of a radiation pattern measurement of a WR-28 open-ended waveguide (OEWG) are shown. At higher frequencies, the wavelength becomes shorter, making phase measurements very sensitive to positioning and alignment errors. The lack of symmetry in

Smart Manufacturing Testbed for the Advancement of Wireless Adoption in the Factory

November 10, 2020
Author(s)
Rick Candell, Yongkang Liu, Mohamed Hany, Karl Montgomery, Sebti Foufou
Wireless communication is a key enabling technology central to the advancement of the goals of the Industry 4.0 smart manufacturing concept. Researchers at the National Institute of Standards and Technology are constructing a testbed to aid in the adoption

Deterministic Move Lists for Federal Incumbent Protection in the CBRS Band

October 13, 2020
Author(s)
Michael R. Souryal, Thao T. Nguyen
The 3.5 GHz citizens broadband radio service (CBRS) band in the U.S. is a key portion of mid- band spectrum shared between commercial operators and existing federal and non-federal incumbents in the band. To protect the federal incumbents from harmful
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