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Redundancy and coverage detection in sensor networks

Published: 01 February 2006 Publication History

Abstract

We study the problem of detecting and eliminating redundancy in a sensor network with a view to improving energy efficiency, while preserving the network's coverage. We also examine the impact of redundancy elimination on the related problem of coverage-boundary detection. We reduce both problems to the computation of Voronoi diagrams, prove and achieve lower bounds on the solution of these problems, and present efficient distributed algorithms for computing and maintaining solutions in cases of sensor failures or insertion of new sensors. We prove the correctness and termination properties of our distributed algorithms, and analytically characterize the time complexity and traffic generated by our algorithms. Using detailed simulations, we also quantify the impact of system parameters such as sensor density, transmission range, and failure rates on network traffic.

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Published In

cover image ACM Transactions on Sensor Networks
ACM Transactions on Sensor Networks  Volume 2, Issue 1
February 2006
153 pages
ISSN:1550-4859
EISSN:1550-4867
DOI:10.1145/1138127
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Association for Computing Machinery

New York, NY, United States

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Publication History

Published: 01 February 2006
Published in TOSN Volume 2, Issue 1

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Author Tags

  1. Sensor networks
  2. coverage
  3. coverage boundary
  4. energy efficiency
  5. redundancy elimination

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