NDLI: Variable Accuracy Sensing in Energy-Constrained Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Xiaoxing Guo Frater, M.R. Ryan, M.J.
Copyright Year	2007
Description	Author affiliation: Univ. of New South Wales, Canberra (Xiaoxing Guo; Frater, M.R.; Ryan, M.J.)
Abstract	Networks comprising large numbers of low-cost, low-power and miniature wireless sensors are used to capture accurate and reliable information of the physical phenomena they are proximate to. However being operated by batteries of finite capacity, energy efficiency is still the major concern in the design of protocols in such networks. In this paper, we first introduce a new sensing scheme that allows variable accuracy to be specified by end users to achieve a trade-off between accuracy and energy efficiency. We then consider the connected active node selection for network lifetime prolongation problem under the proposed scheme by modifying the route weights in a pre-existing algorithm and introduce a new algorithm. The objective of this work is to allow trade-off between accuracy and energy efficiency in a sensor network and use only a subset of sensors to realize a given query, so that energy at inactive ones can be conserved. Extensive experiments show that the proposed sensing scheme and algorithms attain a longer network lifetime by selecting a subset of sensors to provide data at an accuracy determined by end users.
Starting Page	59
Ending Page	59
File Size	214450
Page Count	1
File Format	PDF
ISBN	0769528422
DOI	10.1109/AUSWIRELESS.2007.86
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-27
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Energy efficiency Sensor phenomena and characterization Batteries Intelligent sensors Australia Monitoring Capacitive sensors Base stations Broadcasting
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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