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Journal of Control Science and Engineering
Volume 2015, Article ID 583092, 12 pages
http://dx.doi.org/10.1155/2015/583092
Research Article

Fuzzy Weight Cluster-Based Routing Algorithm for Wireless Sensor Networks

1School of Mechanical Engineering & Automation, Dalian Polytechnic University, Dalian 116034, China
2School of Control Science and Engineering, Dalian University of Technology, Dalian 116024, China
3School of Information Engineering, Dalian Ocean University, Dalian 116023, China

Received 10 April 2015; Revised 28 July 2015; Accepted 26 August 2015

Academic Editor: Onur Toker

Copyright © 2015 Teng Gao 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

Cluster-based protocol is a kind of important routing in wireless sensor networks. However, due to the uneven distribution of cluster heads in classical clustering algorithm, some nodes may run out of energy too early, which is not suitable for large-scale wireless sensor networks. In this paper, a distributed clustering algorithm based on fuzzy weighted attributes is put forward to ensure both energy efficiency and extensibility. On the premise of a comprehensive consideration of all attributes, the corresponding weight of each parameter is assigned by using the direct method of fuzzy engineering theory. Then, each node works out property value. These property values will be mapped to the time axis and be triggered by a timer to broadcast cluster headers. At the same time, the radio coverage method is adopted, in order to avoid collisions and to ensure the symmetrical distribution of cluster heads. The aggregated data are forwarded to the sink node in the form of multihop. The simulation results demonstrate that clustering algorithm based on fuzzy weighted attributes has a longer life expectancy and better extensibility than LEACH-like algorithms.