Title: A two-level topology control strategy for energy efficiency in wireless sensor networks

Authors: Bolian Yin, Hongchi Shi, Yi Shang

Addresses: Department of Computer Science, University of Missouri, Columbia, MO 65211, USA. ' Department of Computer Science, Texas State University-San Marcos, San Marcos, TX 78666, USA. ' Department of Computer Science, University of Missouri, Columbia, MO 65211, USA

Abstract: This paper presents a two-level topology control strategy for energy efficiency in wireless sensor networks (WSNs). There are two types of energy saving approaches: active-subnetwork and transmission-range. The active-subnetwork approach increases the nodes| average sleeping time to save energy in a wireless sensor network, while the transmission-range approach reduces the energy consumption during packet delivery by adjusting the nodes| transmission ranges. By dynamically integrating the two approaches, our two-level approach achieves further energy saving. The simulation shows the performance advantage of our approach in different communication scenarios.

Keywords: two-level strategy; WSNs; wireless sensor networks; topology control; energy efficiency; active sub-networks; transmission range; wireless mobile computing; wireless networks; energy consumption; packet delivery; simulation.

DOI: 10.1504/IJWMC.2010.030974

International Journal of Wireless and Mobile Computing, 2010 Vol.4 No.1, pp.41 - 49

Published online: 14 Jan 2010 *

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