Reducing multi-hop calibration errors in large-scale mobile sensor networks

作者：Olga Saukh, David Hasenfratz, Lothar Thiele · 年份：2015 · DOI：10.1145/2737095.2737113 · 被引用次数：93 · 研究领域：Energy Efficient Wireless Sensor Networks、Sensor Technology and Measurement Systems、Indoor and Outdoor Localization Technologies

Frequent sensor calibration is essential in sensor networks with low-cost sensors. We exploit the fact that temporally and spatially close measurements of different sensors measuring the same phenomenon are similar. Hence, when calibrating a sensor, we adjust its calibration parameters to minimize the differences between co-located measurements of previously calibrated sensors. In turn, freshly calibrated sensors can now be used to calibrate other sensors in the network, referred to as multi-hop calibration.