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Sensor Positioning in Wireless Ad-hoc Sensor Networks Using Multidimensional Scaling (2004)
| Citations: | 147 - 0 self |
BibTeX
@MISC{Ji04sensorpositioning,
author = {Xiang Ji and Hongyuan Zha},
title = {Sensor Positioning in Wireless Ad-hoc Sensor Networks Using Multidimensional Scaling},
year = {2004}
}
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Abstract
Sensor Positioning is a fundamental and crucial issue for sensor network operation and management. In the paper, we first study some situations where most existing sensor positioning methods tend to fail to perform well, an example being when the topology of a sensor network is anisotropic. Then, we explore the idea of using dimensionality reduction techniques to estimate sensors coordinates in two (or three) dimensional space, and we propose a distributed sensor positioning method based on multidimensional scaling technique to deal with these challenging conditions. Multidimensional scaling and coordinate alignment techniques are applied to recover positions of adjacent sensors. The estimated positions of the anchors are compared with their true physical positions and corrected, The positions of other sensors are corrected accordingly. With iterative adjustment, our method can overcome adverse network and terrain conditions, and generate accurate sensor position. We also propose an on demand sensor positioning method based on the above method.
Keyphrases
sensor positioning multidimensional scaling dimensionality reduction technique adverse network existing sensor iterative adjustment adjacent sensor true physical position alignment technique accurate sensor position demand sensor sensor network operation crucial issue terrain condition sensor coordinate sensor network distributed sensor dimensional space estimated position multidimensional scaling technique
