Abstract: The diffusion-based clock synchronization in mobile wireless sensor networks(mWSNs) was researched. To improve the synchronization speed, the essential factors that affect the synchronization performance were analyzed, and two new schemes were put forward. Through simulations, it was illustrated that the synchronization operation rounds, the amount of nodes in networks, the communication range and motion speed of nodes all affected the synchronization speed in mWSNs. I3y giving different operating probability to nodes, the synchronization performance can be improved in the limit of sum of operations. hhe simulation results show that the diffusion-based clock synchronization can enhance the performance in mWSNs utilizing the mobility of nodes, and the two new schemes can improve the synchronization speed further.

Key words: Mobilc wirclcss sensor nctworks(mWSNs) , Clock synchronization, Distribution