19 March 2015
Title: Adaptive Control-Based Clock Synchronization in Wireless Sensor Networks
In this presentation, I would like to introduce a novel distributed synchronization algorithm based upon a Proportional-Integral (PI) controller for Wireless Sensor Networks (WSNs). PISync synchronizes each sensor node by applying a proportional feedback (P) and an integral feedback (I) on the relative synchronization error with respect to the received reference time which allow to simultaneously compensate both clock offset and frequency differences. I will highlight the benefits of this approach in terms of improved steady state error and scalability as compared to least-squares based time synchronization approaches.