NDLI: Contour estimation using collaborating mobile sensors

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Contour estimation using collaborating mobile sensors

Content Provider	ACM Digital Library
Author	Ramamritham, Krithi Srinivasan, Sumana
Abstract	A mobile wireless sensor network may be deployed to detect and track a large-scale physical phenomenon such as a pollutant spill in a lake. It may be called upon to provide a description of a contour characterized by an isoline of a specific concentration value. In this paper, we examine the problem of tracing a contour of a particular concentration within a bounded region of varying pollutant concentration using a network of mobile sensors. Since controlled movement of sensors within a given region is known to improve the overall quality of measurements by reducing sensing uncertainty, we explore various ways of guiding a set of mobile sensors optimally so as to surround and trace the contour. We formulate the contour estimation problem as a nonlinear multi-extremal optimization problem. We use accuracy and latency as performance metrics and show that in majority of the cases our proposed strategy based on collaboration of sensors delivers the best performance.
Starting Page	73
Ending Page	82
Page Count	10
File Format	PDF
ISBN	1595934715
DOI	10.1145/1160972.1160986
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2006-09-26
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Accuracy Performance metrics Contour level set estimation Latency Mobile wireless sensor networks
Content Type	Text
Resource Type	Article

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