Table of Contents
International Scholarly Research Notices
Volume 2014, Article ID 845027, 10 pages
http://dx.doi.org/10.1155/2014/845027
Research Article

Nodes Localization in 3D Wireless Sensor Networks Based on Multidimensional Scaling Algorithm

Faculty of Computer Science and Engineering, Saints Cyril and Methodius University, 1000 Skopje, Macedonia

Received 5 March 2014; Revised 18 June 2014; Accepted 20 June 2014; Published 7 October 2014

Academic Editor: Yonghuai Liu

Copyright © 2014 Biljana Risteska Stojkoska. 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

In the recent years, there has been a huge advancement in wireless sensor computing technology. Today, wireless sensor network (WSN) has become a key technology for different types of smart environment. Nodes localization in WSN has arisen as a very challenging problem in the research community. Most of the applications for WSN are not useful without a priory known nodes positions. Adding GPS receivers to each node is an expensive solution and inapplicable for indoor environments. In this paper, we implemented and evaluated an algorithm based on multidimensional scaling (MDS) technique for three-dimensional (3D) nodes localization in WSN using improved heuristic method for distance calculation. Using extensive simulations we investigated our approach regarding various network parameters. We compared the results from the simulations with other approaches for 3D-WSN localization and showed that our approach outperforms other techniques in terms of accuracy.