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International Journal of Distributed Sensor Networks
Volume 2012 (2012), Article ID 601389, 6 pages
http://dx.doi.org/10.1155/2012/601389
Research Article

A Two-Level Routing Scheme for Wireless Sensor Network

1School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, China
2School of Computer, South China Normal University, Guangzhou 510631, China

Received 13 November 2011; Revised 22 March 2012; Accepted 15 May 2012

Academic Editor: Ruixin Niu

Copyright © 2012 Jinglun Shi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new two-level routing scheme is proposed using the energy features of wireless sensor network. The proposed scheme consists of two levels: (i) sink node level and (ii) sensor node level. The proposed scheme exploits independent gradients for each sink node so that the exploratory messages forwarded by the intermediate sensor nodes can be significantly reduced. Experiments are conducted using two evaluation criterions, which are average dissipated energy and hop counts, to demonstrate the superior performance of the proposed scheme.