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Journal of Applied Mathematics
Volume 2013 (2013), Article ID 706064, 6 pages
http://dx.doi.org/10.1155/2013/706064
Research Article

Research on the WSN Node Localization Based on TOA

School of Information Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China

Received 11 August 2013; Accepted 23 September 2013

Academic Editor: Tao Zou

Copyright © 2013 Qing-hui Wang 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

Regarding the tracking of moving target in the large-scale fixed scene, a new routing algorithm of LAODV in the principle of TOA localization is proposed. Then, the participation field of the fixed node based on the node location information is properly controlled, while the routing request area is reduced through combination of AODV and LAR during transmission of the location information. Simulation results show that the proposed algorithm renders satisfactory performance in terms of average delay reduction from end to end, packet loss rate, and routing overhead. As a result, the delay and system overhead during localization could be minimized.