Abstract
Wireless sensor networks (WSNs) are comprised of energy constrained nodes. This limitation has led to the crucial need for energy-aware protocols to produce an efficient network. The concept of heterogeneity has been introduced in a WSN by deploying a large number of low power sensor nodes and a small number of more powerful nodes to serve as cluster heads (CHs). We propose a sleep scheduling scheme for balancing energy consumption rates in low power sensor nodes based on Analytical Hierarchy Process (AHP). We consider three factors contributing to the optimal nodes scheduling decision and they are the distance to CH, residual energy, and sensing coverage overlapping, respectively. We evaluate the efficiency of our proposed scheme in terms of important network parameters and compare with traditional random sleep scheduling in heterogeneous sensor networks. The proposed scheme is observed to improve network lifetime and conserve energy without compromising desired coverage.
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Wu, X., Cho, J., d’Auriol, B.J., Lee, S. (2007). Sleep Nodes Scheduling in Cluster-Based Heterogeneous Sensor Networks Using AHP. In: Lee, YH., Kim, HN., Kim, J., Park, Y., Yang, L.T., Kim, S.W. (eds) Embedded Software and Systems. ICESS 2007. Lecture Notes in Computer Science, vol 4523. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-72685-2_41
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DOI: https://doi.org/10.1007/978-3-540-72685-2_41
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-72684-5
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