Research on time synchronization apply in WSN

The principles, algorithm and error source of time synchronization in WSN are researched. Consult TPSN and FTSP, an improved time synchronization algorithm based on transmit/receive pair-wise time synchronization mechanism and Flooding time synchronization protocol is proposed, the synchronization error between the nodes and synchronization error of the WSN are estimated. The algorithm proposed is moderate in synchronization precision and energy cost, meets the demand of WSN in synchronization precision, scope and efficiency.