Virtual timestamp and father-burden-chain clock synchronization algorithms for WSN

Based on studying on clock synchronization in wireless sensor network,this paper first proposes virtual timestamp and father-burden-chain clock synchronization algorithms which are suitable for single-hop and whole networks respectively.Furthermore,for the clock synchronization algorithms to be robust and low energy consuming,a new method,searching father with children,is proposed,which uses two novel data structures,neighbor table and link tree.Experimental results show that the clock synchronization algorithm is very precise and can be applied in data collection and detection of large-scale wireless sensor networks.