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Search Publications by: Kate Remley (Assoc)

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Displaying 126 - 150 of 437

Pathloss Models for Indoor Hotspot Deployment at 83.5 GHz

December 3, 2016
Author(s)
Camillo Gentile, Jelena Senic, Peter B. Papazian, Jae-Kark Choi, Kate Remley
Conventional pathloss models are based on the received power from an omnidirectional antenna. Millimeter-wave receivers, conversely, will feature highly directional antennas that can be steered towards the angle with maximum power, exploiting their high

A Tetherless, Absolute-Time Channel Sounder, Processing, and Results for a Complex Environment

November 4, 2016
Author(s)
David R. Novotny, Alexandra E. Curtin, Catherine A. Remley, Peter B. Papazian, Jeanne T. Quimby, Richard Candell
we present a channel sounder that can operate without a tether and still maintain an absolute time reference between the source and receiver. Based on a sliding correlator, with synchronized rubidium clocks to generate phase references for the up- and down

Using Absorption Cross Section to Predict Coherence Bandwidth and other Characteristics of a Reverberation Chamber Set-up for Wireless System Tests

October 3, 2016
Author(s)
Catherine A. Remley, Jos Dortmans, Damir Senic, Chih-Ming Wang, Christopher L. Holloway
We present a method to predict the coherence bandwidth, delay spread and power transfer function of a reverberation chamber set-up. The method is based on the absorption cross section of the absorbing material that is added to the chamber. With an S

Configuring and Verifying Reverberation Chambers for Testing Cellular Wireless Devices

April 21, 2016
Author(s)
Catherine A. Remley, Jos N. Dortmans, Catherine Weldon, Thomas B. Meurs, Chih-Ming Wang, Christopher L. Holloway, Perry F. Wilson
Reverberation chambers provide a repeatable test environment for laboratory over-the-air testing and represent a viable solution for testing large-form-factor wireless devices. Such tests often involve “imperfect chamber” configurations in which the

Estimating and Reducing Uncertainty in Reverberation-Chamber Characterization at Millimeter-Wave Frequencies

April 20, 2016
Author(s)
Damir Senic, Catherine A. Remley, Chih-Ming Wang, Dylan F. Williams, Christopher L. Holloway, Diogo Ribeiro, Ansgar T. Kirk
This contribution provides techniques for accurately characterizing the measurement uncertainty due to chamber setup for total radiated power measurements at millimeter-wave frequencies. The setup is based on the reverberation chamber as a well-known

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

Peer-to-Peer Urban Channel Characteristics for Two Public-Safety Frequency Bands

October 1, 2015
Author(s)
Catherine A. Remley, David W. Matolak, Camillo A. Gentile, Christopher L. Holloway, Qiong Wu, Qian Zhang
We report on ground-based wireless channel characteristics for an urban environment in two public safety bands. Results are based upon measurements taken in Denver in June 2009. The public safety bands we investigated are the 700 MHz and 4.9 GHz bands

Using the Amplitude Variation of a Reverberation Chamber Channel to Predict the Synchronization of a Wireless Digital Communication Test System

August 16, 2015
Author(s)
Ray R. Tanuhardja, Luis A. Gonzalez, Chih-Ming Wang, William F. Young, Kate Remley
This contribution discusses the use of a metric based on the amplitude variation of a channel in the signal bandwidth to predict whether or not a digital wireless communication test system receiver will be able to demodulate a test signal. This metric is