WSN clock synchronization by network-coded messages

In this paper a novel method to improve theWireless Sensor Network synchronization process by introducing networkcoded messages is proposed. The presented technique outweighs the effects of the channel's outage probability by employing the available data to refine the estimates of the pairwise clock offsets. By virtue of the proposed technique, the mean square error of the estimator is significantly reduced for a given energy budget. The claimed features are supported by extensive simulation results for sensors communicating over Rayleigh fading channels.