Joint clock offset and skew estimation for inactive nodes in Wireless Sensor Networks Conference Paper uri icon

abstract

  • We incorporate the clock skew in the message exchange mechanism of [3], without which the clock synchronization problem remains practically unsolved. For the offset-only case, we determine the ML estimators through a simple application of convex optimization, alleviating the need for the graphical search mentioned in [3]. We also propose estimators that outperform the ML estimators in terms of MSE. For the joint estimation of clock offset and skew, we show that the likelihood maximization can be equivalently represented as a linear program and can be solved efficiently by any gradient descent method. © 2011 IEEE.

name of conference

  • 2011 45th Annual Conference on Information Sciences and Systems (CISS)

published proceedings

  • 2011 45th Annual Conference on Information Sciences and Systems

author list (cited authors)

  • Ahmad, A., Noor, A., & Serpedin, E

citation count

  • 2

complete list of authors

  • Ahmad, Aitzaz||Noor, Amina||Serpedin, Erchin

publication date

  • March 2011

publisher