A simple scheme with low energy consumption for coverage maintenance in wireless sensor networks

Authors:
Sung Ho Hwang;Minsu Kim;Tae-young Byun
Affiliations:
School of ECE, Georgia Tech;School of ECE, Georgia Tech;School of CICE, Catholic University of Daegu, Korea
Venue:
UCS'06 Proceedings of the Third international conference on Ubiquitous Computing Systems
Year:
2006

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Abstract

An effective approach for energy conservation in wireless sensor networks is scheduling sleep intervals for redundant nodes, while guaranteeing continuous services with the remaining active nodes. For the sensor networks to operate successfully, the active nodes must maintain sensing coverage. In this paper, we present the design and analysis of a novel scheme that can adaptively configure a network to achieve entire coverage. This work differs from the existing coverage maintenance schemes in several ways: 1) We propose a novel scheme of configuring active nodes from all given nodes; 2) We provide simple coverage model to calculate the number of active nodes satisfying the coverage; and 3) Our scheme performs well without any location information, so it can be easily used in hostile environments which requires a fast network configuration. We demonstrate the capability of our scheme in terms of coverage configuration through simulations.