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Displaying 1151 - 1175 of 1204

Security Considerations for Voice Over IP Systems

January 1, 2005
Author(s)
David R. Kuhn, Thomas J. Walsh, S G. Fries
Voice over Internet Protocol (VOIP) refers to the transmission of speech across data-style networks. This form of transmission is conceptually superior to conventional circuit switched communication in many ways. However, a plethora of security issues are

Securing Voice Over Internet Protocol (IP) Networks

October 1, 2004
Author(s)
Thomas J. Walsh, David R. Kuhn
Voice over IP - the transmission of voice over traditional packet-switched IP networks - is one of the hottest trends in telecommunications. As with any new technology, VOIP introduces both opportunities and problems. Lower cost and greater flexibility are

Pulse Parameter Dependence on Transition Position and Epoch Duration

May 18, 2004
Author(s)
Donald R. Larson, Nicholas Paulter, David I. Bergman
The pulse parameters of amplitudes and transition duration (10% to 90%) are examined as a function of the epoch and position of the transition edge in the epoch. The primary explanations for the observed variations are the pulse aberrations and the finite

IEEE 1451 Smart Wireless Machinery Monitoring and Control for Naval Vessels

July 1, 2003
Author(s)
T Brooks, S Chen, Kang B. Lee
The IEEE 1451 family of standards makes it easy to create solutions using existing networking technologies, standardized connections to smart devices, and a common software architecture. The standards allow the choice of application software, field network

Security for Wireless Networks and Devices

March 27, 2003
Author(s)
Shirley M. Radack
This ITL Bulletin summarizes NIST Special Publication (SP) 800-48, Wireless Network Security, 802.11, Bluetooth, and Handheld Devices. Written by Tom Karygiannis and Les Owens. NIST SP 800-48 provides recommendations to improve the security of wireless

Advances in Wireless Networking Standards

December 1, 2002
Author(s)
Roger Marks
This paper describes air interface standards for wireless local area network (LAN), wireless metropolitan area network (MAN), and wireless personal area network (PAN) technology being developed within the IEEE 802 LAN MAN Standards Committee of the

Security for Telecommuting and Broadband Communications

November 1, 2002
Author(s)
Shirley M. Radack
This bulletin summarizes NIST SP 800-46, Security for Telecommuting and Broadband Communications, published September 2002. The report discusses both technical and policy issues, and provides guidance on using personal firewalls, strengthening the security

Calibration of Broadband RF Field Probes Using a Coaxial Transmission Line

May 20, 2002
Author(s)
Claude Weil, David R. Novotny, Robert T. Johnk, Arthur Ondrejka
We discuss a new broadband (10MHz to 40 GHz) RF field standard to be used for calibrating electrically-small electromagnetic field probes. The technique generates a well-defined and uniform TEM mode fields between the conductors of an air-filled coaxial
Displaying 1151 - 1175 of 1204
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