Time Synchronization Algorithm Based on the Quartz Oscillator Frequency Deviation Compensation for Wireless Sensor Networks
Niu Dou · Journal of Chinese Computer Systems · 2008
The most important reasons that cause time drift is the frequency oscillator deviation of different nodes.To address this issue,this paper presents a time synchronization algorithm based on the Quartz Oscillator Frequency deviation compensation.The algorithm estimates Quartz Oscillator Frequency deviation between pending synchronization node and time beacon node by use of the time recorded in two adjacent synchronization process,and pending synchronization nodes realize time synchronization with time beacon node according to Quartz Oscillator Frequency deviation and two-way message exchange model.Experiment results show that the algorithm greatly improves synchronization precision.