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Author: william healy
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1. Impacts of 2.4 GHz ISM Band Interference on IEEE 802.15.4 Wireless Sensor Network Reliability in Buildings
Published: 9/9/2012
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: With the recent emergence of standards, wireless solutions are ready to be deployed in building automation networks. IEEE 802.15.4 is a standard for short range wireless networks. Its major applications fields are home and building automation, as wel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906735

2. Battery Discharge Characteristics of Wireless Sensors in Building Applications
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

3. Input-Output Approach to Predicting the Energy Efficiency of Residential Water Heaters ‹ Testing of Gas Tankless and Electric Storage Water Heaters
Published: 11/1/2011
Authors: William M Healy, Tania Ullah, John F Roller
Abstract: A study was conducted to evaluate the potential for using a linear relationship between the power input to a residential water heater and the output of thermal energy in hot water for rating the unit‰s energy efficiency. This approach has the potent ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906851

4. Performance Measurements and Analysis of Low Data Rate Wireless Communication Under Interference Sources in Buildings
Published: 10/13/2010
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: Interference from collocated networks operating over the same frequency range becomes an increasingly severe problem as the number of networks overlapping geographically increases within commercial and residential buildings. This paper aims to highli ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905715

5. An Experimental Study of Interference Impacts on ZigBee-based Wireless Communications Inside Buildings
Published: 8/7/2010
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: ZigBee is a wireless technology developed as an open global standard to address the unique needs of low-cost, low-power wireless sensor networks. This standard takes full advantages of the IEEE 802.15.4 physical radio specification and operates in un ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905714

6. ZigBee-Wireless Mesh Networks for Building Automation and Control
Published: 4/12/2010
Authors: Wenqi Guo, William M Healy, Mengchu Zhou
Abstract: ZigBee is a wireless technology developed as an open global standard to address the unique needs of low-cost low-power wireless sensor networks. This standard takes full advantages of the IEEE 802.15.4 physical radio specification and operates in unl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905069

7. Wireless Sensor Network Performance Metrics for Building Applications
Published: 4/1/2010
Authors: Won Suk Jang, William M Healy
Abstract: Metrics are investigated to help assess the performance of wireless sensors in buildings. Wireless sensor networks present tremendous opportunities for energy savings and improvement in occupant comfort in buildings by making data about conditions a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901761

8. Measurement Science Roadmap for Net-Zero Energy Buildings
Series: Technical Note (NIST TN)
Report Number: 1660
Published: 3/18/2010
Authors: Joan Pellegrino, A. Hunter Fanney, Andrew Keith Persily, Piotr A Domanski, William M Healy, Steven T Bushby
Abstract: Buildings account for nearly a third of the world s energy use today, and this share is expected to rise along with population growth and levels of prosperity. In the United States, residential and commercial buildings consume about 40% of primary en ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905024

9. Measurement Challenges in Achieving Energy Monitoring Systems in Buildings
Series: Technical Note (NIST TN)
Report Number: 1656
Published: 3/3/2010
Author: William M Healy
Abstract: The benefits of energy conserving approaches in buildings are often not apparent to building occupants because of the insufficient feedback provided regarding energy consumption. A review of the literature suggests that energy feedback devices can p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904372

10. Assessment of Performance Metrics for Use of Wireless Sensor Networks in Buildings
Published: 9/30/2009
Authors: Won Suk Jang, William M Healy
Abstract: This paper is part of an effort to develop measurement systems and methods to better predict the performance of wireless sensor and control networks in building applications. Because of the variability in application requirements, the development of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902706



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