U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Advanced communications

Wireless (RF)

Search Publications

Search Title, Abstract, Conference, Citation, Keyword or Author
  • Published Date
Displaying 401 - 425 of 641

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

Guidance for Secure Authorization of Mobile Applications in the Corporate Environment

March 19, 2015
Author(s)
Athanasios T. Karygiannis, Stephen Quirolgico, Larry Feldman, Gregory A. Witte
This bulletin provides an overview of NIST Special Publication (SP) 800-163, "Vetting the Security of Mobile Applications." The NIST SP helps organizations understand the process for vetting the security of mobile applications, plan for the implementation

A Review of Wireless Coexistence Test Methodologies

March 15, 2015
Author(s)
William F. Young, Jason B. Coder, Luis A. Gonzalez
This paper discusses several wireless coexistence test methods in-practice and proposed for industry standards such as ANSI C63.27 The test methods include conducted and radiated setups, and utilize a range of technologies at various levels of

Measuring a Device's Susceptibility to LTE: Preliminary Approaches

March 15, 2015
Author(s)
Jason B. Coder, John M. Ladbury
Previous testing has shown that measuring a device’s susceptibility to a radiated, broadband signal can present a different set of challenges than those faced when testing with a narrow-band signal. Decisions ranging from choosing a measurement facility to

Nationwide Public Safety Broadband Network Deployment: Network Parameter Sensitivity Analysis

March 15, 2015
Author(s)
Richard A. Rouil, Antonio Izquierdo Manzanares, Camillo A. Gentile, David W. Griffith, Nada T. Golmie
The legislation included in the middle class tax relief and job creation act of 2012 established the First Responder Network Authority (FirstNet) for the purpose of deploying and running a nationwide Long Term Evolution (LTE) network for Public Safety

An Overview of the NTIA/NIST Spectrum Monitoring Pilot Program

March 9, 2015
Author(s)
Michael Cotton, Michael R. Souryal, Mudumbai Ranganathan, Jeff Wepman, Julie Kub, Steve Engelking, Yeh Lo, Heather Ottke, Raian Kaiser, Douglas Anderson
This paper provides an overview of a Spectrum Monitoring Pilot Program within the U.S. Department of Commerce. It provides background, motivation, goals, accomplishments, and plans for future work. We describe the development of a federated Measured

Optimizing the Location Deployment of Dynamic Mobile Base Stations

February 19, 2015
Author(s)
Sulabh Bhattarai, Sixiao Wei, Stephen Rook, Wei Yu, David W. Griffith, Nada T. Golmie
There has been growing interest over the past few years in the US and around the world to build reliable, robust, and interoperable public safety broadband networks for emergency and disaster response. In this paper, we propose a low-cost, dynamic

Vetting the Security of Mobile Applications

January 26, 2015
Author(s)
Stephen Quirolgico, Jeffrey M. Voas, Tom T. Karygiannis, Christoph Michael, Karen Scarfone
The purpose of this document is to help organizations (1) understand the process for vetting the security of mobile applications, (2) plan for the implementation of an app vetting process, (3) develop app security requirements, (4) understand the types of

Public Safety Mobile Application Security Requirements Workshop Summary

January 22, 2015
Author(s)
Michael Ogata, Barbara Guttman, Nelson Hastings
This document captures the input received from the half-day workshop titled "Public Safety Mobile Application Security Requirements" organized by the Association of Public-Safety Communications Officials (APCO) International, in cooperation with FirstNet

Proximity-effect test for lossy wireless-device measurements in reverberation chambers

January 4, 2015
Author(s)
Catherine A. Remley, Joop Aan Den Toorn, Christopher L. Holloway, John M. Ladbury, Chih-Ming Wang
We present a test method for quantifying and reducing systematic errors arising from antenna proximity to lossy objects in over-the-air performance testing of lossy large-form-factor wireless devices. The method determines the extent to which antenna

A 4D Immersive Platform to Visualize RF Propagation in BAN

January 1, 2015
Author(s)
John G. Hagedorn, Kamran Sayrafian, Judith E. Terrill, Kamya Yekeh Yazdandoost
Recent advances in micro-electronics technology to build small radio-enabled implantable and wearable medical sensors have sparked considerable interest in body area networks. Understanding the characteristics of radio frequency propagation inside and

Guidelines for Derived Personal Identity Verification (PIV) Credentials

December 19, 2014
Author(s)
Hildegard Ferraiolo, David A. Cooper, Salvatore Francomacaro, Andrew R. Regenscheid, Jason Mohler, Sarbari Gupta, William E. Burr
This recommendation provides technical guidelines for the implementation of standards-based, secure, reliable, interoperable PKI-based identity credentials that are issued by Federal departments and agencies to individuals who possess and prove control

Optimal Deployment of Pico Base Stations in LTE-Advanced Heterogeneous Networks

October 29, 2014
Author(s)
Sungseob Lee, SuKyoung Lee, Kim KyungSoo, David W. Griffith, Nada T. Golmie
As data traffic demand in cellular networks grows exponentially, operators need to add new cell sites to keep up; unfortunately, it is costly to build and operate macrocells. Moreover, it may not be possible to obtain the needed approvals for additional

Characterizing a Device's susceptibility to broadband signals: A case study

August 4, 2014
Author(s)
Jason B. Coder, John M. Ladbury, David Hunter
It is common for electronic devices to be tested for their susceptibility to radiated signals they may be exposed to during their normal operation. A reverberation chamber is well suited to perform this type of testing because it can expose the device

Radiowave Propagation in Urban Environments with Application to Public-Safety Communications

August 4, 2014
Author(s)
William F. Young, Catherine A. Remley, Christopher L. Holloway, Galen H. Koepke, Dennis G. Camell, John M. Ladbury, Colton R. Dunlap
We characterize key elements that pose challenges to public-safety radio communications into and out of large buildings, including the strong attenuation of radio signals caused by losses and scattering in the building materials and structure, and the

Inter-BAN Interference Mitigation: A Correlated Equilibrium Perspective

June 13, 2014
Author(s)
Vladimir Marbukh, Kamran Sayrafian, Martina Barbi, Mehdi Alasti
A Body Area Network (BAN) is a wireless network of wearable or implantable computing devices. A BAN typically consists of several miniaturized radio-enabled body sensor/actuator that communicate with a single coordinator. Medical applications usually

Absorptive Limiter for Frequency Selective Circuits

June 1, 2014
Author(s)
Juan C. Collado Gomez, Eduard Rocas, James C. Booth, Jordi Mateu, J. M. O'Callaghan, J. Verdu, A. Hueltes
This paper describes a novel absorptive limiter for frequency selective circuits. The proposed circuit allows the design of absorptive limiters based on a bi-state phase shifter, which is appropriate for integration into channelizing devices, such as
Was this page helpful?