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Sensors 2011, 11(6), 6203-6213; doi:10.3390/s110606203

Energy-Efficient Algorithm for Sensor Networks with Non-Uniform Maximum Transmission Range

School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, China
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Author to whom correspondence should be addressed.
Received: 15 April 2011 / Revised: 15 May 2011 / Accepted: 7 June 2011 / Published: 8 June 2011
(This article belongs to the Section Physical Sensors)
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Abstract

In wireless sensor networks (WSNs), the energy hole problem is a key factor affecting the network lifetime. In a circular multi-hop sensor network (modeled as concentric coronas), the optimal transmission ranges of all coronas can effectively improve network lifetime. In this paper, we investigate WSNs with non-uniform maximum transmission ranges, where sensor nodes deployed in different regions may differ in their maximum transmission range. Then, we propose an Energy-efficient algorithm for Non-uniform Maximum Transmission range (ENMT), which can search approximate optimal transmission ranges of all coronas in order to prolong network lifetime. Furthermore, the simulation results indicate that ENMT performs better than other algorithms. View Full-Text
Keywords: energy hole; load-similar node distribution; energy balance; network lifetime energy hole; load-similar node distribution; energy balance; network lifetime
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Yu, Y.; Song, C.; Liu, M.; Gong, H. Energy-Efficient Algorithm for Sensor Networks with Non-Uniform Maximum Transmission Range. Sensors 2011, 11, 6203-6213.

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