Efficient Time Synchronization for Wireless Sensor Networks

The time synchronization is an important problem for wireless sensor networks. There has been many time synchronization methods proposed in the literature, such as. The purpose of them was to synchronize the whole network, which cost much time and energy. In this paper, an efficient time synchronization scheme for wireless sensor networks is proposed. According to the specific application purpose of the network, only a few nodes of the network are selected to synchronize to each other. Performance analyses and simulations are presented in this paper, and demonstrate that our proposed scheme has higher time-efficiency and energy-efficiency than the traditional schemes in the literature.