Probability Distribution Based Time Synchronization Protocol for Wireless Sensor Networks
Lian Li, Limin Sun · 2008
Taking the dynamic topology characteristic of mobile sensor networks into account,a proba- bility distribution-based time synchronization protocol(PDTS)is proposed.In PDTS,synchronized nodes send out synchronization messages with self-adaptive probability according to their current states to synchronize other nodes.By this means,the sufficiency of synchronization messages is guaranteed and the redundancy in the networks is reduced remarkably.Additionally,there is no need to establish network hierarchy and merely one communication is required to synchronize a pair of nodes in PDTS. Due to the before-mentioned advantages,PDTS can be applied to mobile sensor networks effectively.