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Displaying 326 - 350 of 1414

On the Susceptibility of Coded OFDM to Interference: A Simulation Study

January 3, 2018
Author(s)
Jason Coder, Yao Ma
The susceptibility of broadband wireless communications signals (e.g., LTE, IEEE 802.11) to interference has been a topic of significant research. In this paper, we implement a simulation-based study on the impact interference can have on the bit error

Adaptive synchronization reference selection for out-of-coverage Proximity Services (ProSe)

October 8, 2017
Author(s)
Samantha M. Gamboa Quintiliani, Fernando J. Cintron, David W. Griffith, Richard A. Rouil
Proximity services (ProSe) is a Long Term Evolution Advanced (LTE-A) feature that allows User Equipments (UEs) to communicate without the need of routing the data throughout the network. In this paper, we studied the synchronization protocol used by ProSe

Updated NIST Guidance for Bluetooth Security

July 26, 2017
Author(s)
Lidong Chen, Larry Feldman, Gregory A. Witte
This bulletin summarizes the information in NIST SP 800-121, Revision 2: Guide to Bluetooth Security which provides information on the security capabilities of Bluetooth and provides recommendations to organizations employing Bluetooth wireless

A Novel Adaptive Transmission Algorithm for Device-to-Device Direct Discovery

June 27, 2017
Author(s)
Aziza Ben Mosbah, David W. Griffith, Richard A. Rouil
In this paper we study and improve one service used for Proximity Services and Device-to-Device (D2D) communications: D2D Direct Discovery. As defined in the Third Generation Partnership Project, for both in-coverage and out-of-coverage cases, resource

Implementation and Validation of an LTE D2D Model for ns-3

June 13, 2017
Author(s)
Richard A. Rouil, Fernando J. Cintron, Aziza Ben Mosbah, Samantha M. Gamboa Quintiliani
The ability to perform device-to-device (D2D) communication in Long Term Evolution (LTE)-based cellular networks became possible with the introduction of Proximity Services (ProSe) functionalities in the 3rd Generation Partnership Program (3GPP)

Software Tools for Uncertainty Evaluation in VNA Measurements: A Comparative Study

June 8, 2017
Author(s)
Gustavo Avolio, Dylan Williams, Michael Frey, Sarah B. Streett, Dominique Schreurs, Andrea Ferrero, Michael Dieudonne
We compared three software tools designed for scattering-parameter measurement uncertainty evaluation. These tools propagate uncertainty to calibrated S-parameters by means of a sensitivity analysis. We also validated the sensitivity analysis with Monte

Resonant Acoustic Frequency Shifts Associated with Cracks in Multilayer Ceramic Capacitors

June 6, 2017
Author(s)
Ward L. Johnson, Jaemi Herzberger, Sudook A. Kim, Kirsten L. Peterson, Paul R. Heyliger, Grady S. White
Resonant ultrasound spectroscopy (RUS) was used in this study to measure shifts in resonant frequency that arise from the presence of cracks in barium-titanate-based multi-layer ceramic capacitors (MLCCs). This work was motivated by an industrial need for

3.5 GHz Radar Waveform Capture at Point Loma

May 11, 2017
Author(s)
Paul D. Hale, Jeffrey A. Jargon, Peter J. Jeavons, Michael R. Souryal, Adam J. Wunderlich, Mark Lofquist
We describe measurements to create a library of high-fidelity waveforms of federal incumbent radar signals currently operating in the 3550 MHz – 3650 MHz (“3.5 GHz”) band. In the first phase of assembling this library, measurements were collected at Point

Industrial Wireless Systems Workshop Proceedings

May 11, 2017
Author(s)
Richard Candell
Background: Wireless technology has great appeals to many manufacturers, in this case industrial automation systems, which include process control, discrete manufacturing, safety systems, and building automation. Applying wireless sensing and control

Guide to Bluetooth Security

May 8, 2017
Author(s)
John Padgette, John Bahr, Mayank Batra, Marcel Holtmann, Rhonda Smithbey, Lidong Chen, Karen Scarfone
Bluetooth wireless technology is an open standard for short-range radio frequency communication used primarily to establish wireless personal area networks (WPANs), and has been integrated into many types of business and consumer devices. This publication
Displaying 326 - 350 of 1414
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