Synchronization for Wireless Sensor Networks

Sponsor: N/A
Period: January 2002 -
Students: Suyoung Yoon
Chanchai Veerarittiphan (graduated Summer 2003)

Overview

Tiny-sync assumes that (at least temporarily) the drift between the two nodes to be synchronized is linear.

The goal of this project is to time-synchronize efficiently and robustly large wireless sensor networks (WSN). Synchronization is an essential middleware component in WSNs: MAC layers, switch-off schedules, target detection and tracking and many applications rely on time synchronization. In many cases the precision or the efficiency of the application is directly related to the precision of the time synchronization algorithm.

The presented approach has minimal complexity and has the advantage of offering tight bounds on the achieved precision (i.e. in addition to the estimated offset and drift it also specifies offset and drift uncertainties).

Related Publications

  1. Suyoung Yoon, Chanchai Veerarittiphan, and Mihail L. Sichitiu, Tiny-Sync: Tight Time Synchronization for Wireless Sensor Networks submitted.
  2. Suyoung Yoon and Mihail L. Sichitiu, Analysis and Performance Evaluation of a Time Synchronization Protocol for Wireless Sensor Networks, in Proc. of The International Conference on Telecommunication Systems, Modeling and Analysis(ICTSM 2005), Dallas, TX, Nov. 2005.
  3. Mihail L. Sichitiu and Chanchai Veerarittiphan, "Simple, Accurate Time Synchronization for Wireless Sensor Networks", in Proc. of the IEEE Wireless Communications and Networking Conference (WCNC 2003), New Orleans, LA, March 2003.
    Last modified: Tue Oct 17 13:37:27 EDT 2006