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Displaying 701 - 725 of 1201

Interference and Coexistence of Wireless Systems in Critical Infrastructure

July 7, 2015
Author(s)
Galen H. Koepke, William F. Young, John M. Ladbury, Jason B. Coder
We examine interference and coexistence testing issues, test methods, and the need to update and develop new test methodologies related to the use of wireless devices in critical infrastructure systems. A case study on interference is presented along with

PASSING THE BATON: Message FROM THE INCOMING EDITOR-IN-CHIEF

June 1, 2015
Author(s)
Hamid Gharavi
This incoming Editor In Chief's (EIC) message is expected to appear in the next issue of the IEEE wireless communications. The editorial team will be under the leadership of the new EIC for a period of three years.

Area Coverage in a Fixed-Obstacle Environment using Mobile Sensor Networks

May 17, 2015
Author(s)
Kamran Sayrafian, Hamid Mahboubi, Amir Aghdam
In this chapter, efficient deployment strategies for mobile sensor networks are proposed to improve the coverage area in target fields containing obstacles. The developed algorithms iteratively calcu- late and update the position of the sensors in order to

Authentication Considerations for Public Safety Mobile Networks

May 14, 2015
Author(s)
Nelson Hastings, Joshua M. Franklin, Larry Feldman, Greg Witte
This bulletin summarizes the information presented in NISTIR 8014, Considerations for Identity Management in Public Safety Mobile Networks, written by Nelson Hastings and Joshua Franklin. The publication analyzes approaches to identity management for

Millimeter-Wave Modulated-Signal and Error-Vector-Magnitude Measurement With Uncertainty

May 1, 2015
Author(s)
Catherine A. Remley, Dylan F. Williams, Paul D. Hale, Chih-Ming Wang, Jeffrey A. Jargon, Youngcheol Park
We provide techniques to generate and characterize precision wideband millimeter-wave modulated signals. We use predistortion to obtain a significant improvement in signal quality and an associated reduction in the error vector magnitude (EVM) of the

A Compact Millimeter-wave Multisine Generator for Calibrating Broadband Vector Receivers

April 30, 2015
Author(s)
Paul D. Hale, Kate Remley, Dylan Williams, Jeffrey Jargon, Chih-Ming Wang
We propose a compact and low cost waveform source that can be used to calibrate the magnitude and phase response of vector receivers over a bandwidth as large as a few gigahertz. The generator consists of a broadband comb generator followed by a filter and

Calibration of Millimeter-wave Channel Sounders for Super-resolution Multipath Component Extraction

April 9, 2015
Author(s)
Peter B. Papazian, Jae-Kark Choi, Jelena Senic, Peter J. Jeavons, Camillo Gentile, Nada T. Golmie, Roy Sun, David R. Novotny, Kate Remley
Millimeter-wave communication systems will rely on highly directional antennas to compensate for the greater pathloss expected in their frequency bands of operation. Electronic beamforming, hence, will form a cornerstone for the technology. For the

Considerations for Identity Management in Public Safety Networks

March 30, 2015
Author(s)
Nelson Hastings, Joshua M. Franklin
This document analyzes approaches to identity management for public safety networks in an effort to assist individuals developing technical and policy requirements for public safety use. These considerations are scoped into the context of their
Displaying 701 - 725 of 1201
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