Abstract
Nodes positioning has recently been of great interest in wireless networks owing to its crucial role in many applications. In wireless sensor networks WSNs, the task of localising sensor nodes with unknown position is important for efficient network configuration and operation. This challenge has stimulated research of various localisation algorithms. In this paper we propose robust localisation algorithm for large scale three-dimensional 3D WSNs based on multidimensional scaling MDS. Our approach has two main improvements over classical MDS algorithm. Firstly, it uses heuristic approach for distance matrix calculation, and secondly, it applies Levenberg-Marquardt LM method for absolute map refinement using received signal strength RSS measurements. Furthermore, the performance of the proposed approach is compared to other 3D WSN localisation techniques and it is shown that the proposed approach outperforms other techniques for 3D localisation.
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