Abstract
Self-Localization is one of the key technologies in the wireless sensor network (WSN). The traditional self-localization algorithms can provide a reasonable positioning accuracy only in a uniform and dense network, while for a non-uniform network, the performance is not acceptable. In this paper, we presented a novel grid-based linear least squares (LLS) self-localization algorithm. The proposed algorithm uses the grid method to screen the anchors based on the distribution characteristic of a non-uniform network. Furthermore, by taking into consideration the quasi-uniform distribution of anchors in the area we select suitable anchors to assist the localization. Simulation results demonstrate that the proposed algorithm can greatly enhance the localization accuracy of the anonymous nodes and impose less computation burden compared to traditional trilateration and multilateration.
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Acknowledgement
This research was supported by the foundation of Northwest University ND14041, and the National Natural Science Foundation of China 61373177.
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Wang, W. et al. (2015). A Self-Localization Scheme with Grid-Based Anchor Selection in Wireless Sensor Networks. In: Sun, L., Ma, H., Fang, D., Niu, J., Wang, W. (eds) Advances in Wireless Sensor Networks. CWSN 2014. Communications in Computer and Information Science, vol 501. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46981-1_24
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DOI: https://doi.org/10.1007/978-3-662-46981-1_24
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