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Journal of Sensors
Volume 2015 (2015), Article ID 716468, 10 pages
http://dx.doi.org/10.1155/2015/716468
Research Article

Trust-Aware and Low Energy Consumption Security Topology Protocol of Wireless Sensor Network

1College of Computer Science and Electronic Engineering, Hunan University, Changsha, Hunan 410082, China
2Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China
3School of Computer Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

Received 18 August 2014; Accepted 8 October 2014

Academic Editor: Fei Yu

Copyright © 2015 Zuo Chen 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

Wireless sensor network (WSN) is a kind of distributed and self-organizing networks, in which the sensor nodes have limited communication bandwidth, memory, and limited energy. The topology construction of this network is usually vulnerable when attacked by malicious nodes. Besides, excessive energy consumption is a problem that can not be ignored. Therefore, this paper proposes a secure topology protocol of WSN which is trust-aware and of low energy consumption, called TLES. The TLES considers the trust value as an important factor affecting the behavior of node. In detail, the TLES would take trust value, residual energy of the nodes, and node density into consideration when selecting cluster head nodes. Then, TLES constructs these cluster head nodes by choosing the next hop node according to distance to base station (BS), nodes’ degrees, and residual energy, so as to establish a safe, reliable, and energy saving network. Experimental results show that the algorithm can effectively isolate the malicious node in the network and reduce the consumption of energy of the whole network.