MP-based Algorithm in Node Localization of Wireless Sensor Network
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| Title | MP-based Algorithm in Node Localization of Wireless Sensor Network |
| Authors | |
| Abstract | Wireless sensor network (WSN) has attracted more and more research interest because of its various applications in distributed monitoring, communication, and computing. For most applications, developing a distributed practical positioning algorithm is probably the most important and challenging task. As a high-resolution method of parameter estimation, matrix pencil (MP) algorithm can be used in node localization. We put forward a novel range-based node localization method for WSN in this paper. The new scheme employs MP algorithm for multi-path time-delay estimation, multilateral localization for absolute positioning and Taylor algorithm or Chan algorithm to solve non-linear equations. The proposed method has some key superiority over traditional localization methods, such as higher positioning accuracy, smaller computational amount, suppression over non-Gaussian noise, energy saving, faster executing, etc. Simulations show that the accuracy of MP algorithm for time of arrival (TOA) estimation is low (ns-level) and non-Gaussian noise can be well inhibited. The impact of some factors such as signal to noise ratio (SNR) and the number of nodes are also studied in this paper. |
| Publisher | ACADEMY PUBLISHER |
| Date | 2010-10-01 |
| Source | Journal of Networks Vol 5, No 10 (2010): Special Issue: Information Security and Applications |
| Rights | Copyright © ACADEMY PUBLISHER - All Rights Reserved.To request permission, please check out URL: http://www.academypublisher.com/copyrightpermission.html. |