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You searched on: Topic Area: Wireless

Displaying records 21 to 30 of 49 records.
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21. Dynamic Key Refreshment for Smart Grid Mesh Network Security
Topic: Wireless
Published: 2/24/2013
Author: Hamid Gharavi
Abstract: This paper presents a dynamically updating key distribution strategy to enhance mesh network security against cyber attacks. The scheme has been applied to two security protocols known as Simultaneous Authentication of Equals (SAE) and Efficient Mesh ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912924

22. Novel Tree-Search Algorithm versus Sphere-Decoding-based Algorithms for MIMO system with Inter-Symbol Interference
Topic: Wireless
Published: 12/3/2012
Author: Hamid Gharavi
Abstract: In this paper we firstly propose a general model to combat the Inter-Symbol Interference (ISI) caused by frequency selective channels in a Multi-InputMulti-Output (MIMO) system and/or by asynchronous cooperative transmissions. The general model is no ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911826

23. Biometrics in a Networked World
Topic: Wireless
Published: 12/2/2012
Author: Kevin C Mangold
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911889

24. Virtual Reality Platform to Study RF Propagation in Body Area Networks
Topic: Wireless
Published: 12/2/2012
Authors: Kamran Sayrafian, John G Hagedorn, Wen-Bin Yang, Judith Ellen Terrill
Abstract: Design of efficient wireless communication protocols for body area networks requires in-depth understanding of the propagation media i.e. the human body. As obtaining large amount of data for many scenarios and use-cases via physical experiment i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912376

25. A Low-Complexity Solution to Decode Diversity-Oriented Block Codes in MIMO Systems with Inter-Symbol Interference
Topic: Wireless
Published: 10/1/2012
Authors: Hamid Gharavi, Chong Xu
Abstract: In this paper we firstly propose a block-code based general model to combat the Inter-Symbol Interference (ISI) caused by frequency selective channels in a Multi-Input Multi- Output (MIMO) system and/or by asynchronous cooperative transmissions. The ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911916

26. Radiation Pattern of an UWB Wearable Antenna: A Preliminary Study
Topic: Wireless
Published: 9/24/2012
Authors: Wen-Bin Yang, Kamran Sayrafian
Abstract: Inhomogeneity of the propagation medium in body area networks could have a great impact on the sensor node‰s antenna characteristics. This in turn could affect the quality of the communication links unless the impact of the human body has been pr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912111

27. Battery Discharge Characteristics of Wireless Sensors in Building Applications
Topic: Wireless
Published: 4/11/2012
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: Sensor nodes in wireless networks often use batteries as their source of energy, but replacing or recharging exhausted batteries in a deployed network can be difficult and costly. Therefore, prolonging battery life becomes a principal objective ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910723

28. Testing Passive UHF Tag Performance Evolution
Topic: Wireless
Published: 9/15/2011
Authors: Daniel G Kuester, David R Novotny, Jeffrey R Guerrieri, Zoya Popovic
Abstract: Trends in tag development since the introduction of the ISO 18000-6C and EPC Global standards are investigated empirically with measurements of power harvesting and backscattering performance from 20 samples of passive tags across 860-960MHz. The pop ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908617

29. Radio Frequency Measurements to Support Public Safety Wireless Communications in Large Buildings and Structures
Topic: Wireless
Published: 6/13/2011
Authors: William F Young, Catherine A Remley, Christopher L Holloway, Galen H. Koepke, Dennis G. Camell, John M Ladbury
Abstract: The public safety community requires dependable wireless communications in buildings that often disrupt the radio frequency propagation due to the construction material, architectural features, or large physical dimensions. Here we introduce measurem ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908770

30. Ant-Colony Based Near-ML Block Decoder in Asynchronous Cooperative MIMO Systems Using a Linear Dispersion Structure
Topic: Wireless
Published: 6/5/2011
Authors: Hamid Gharavi, Chong Xu
Abstract: The linear dispersion structure is employed to accommodate the dynamic topology of cooperative networks, as well as to achieve higher throughput than conventional space-time codes based on orthogonal designs. Asynchronous Cooperative Liner Dispersio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907007



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