DISTY: Dynamic Stochastic Time Synchronization for Wireless Sensor Networks
Wasif Masood, Jorge F. Schmidt, Günther Brandner, Christian Bettstetter · IEEE Transactions on Industrial Informatics · 2016
A time synchronization technique for networked devices with low-precision oscillators and low computational power is proposed and evaluated. We apply a dynamic stochastic model inserted into a Kalman filter formulation to track the clock evolution of oscillators and achieve synchrony to a central time reference. Indoor and outdoor experiments performed with commercially available wireless sensor platforms over several days serve as a proof of concept and show the synchronization accuracy under stable and varying temperature conditions.