A New Energy-Efficient Flooding Broadcast Time Synchronization for Wireless Sensor Networks

摘要

With the increasing scale of wireless sensor networks (WSN), it inevitably exists some problems in time synchronization, such as the sensitivity to the data of the normal error range, the large energy consumption and the long synchronous convergence time. To solve these problems, a high precision energy efficient broadcast time synchronization algorithm is proposed in this paper. This algorithm firstly sets the membership degree of each class and each sample. Then, by constantly iterating and adjusting the membership degree until convergence, it gets the only cluster by calculating each data to improve the accuracy. Finally, the MATLAB simulation results show that the proposed algorithm can not only improve the time synchronization accuracy, but also reduce the overall energy consumption level of the whole WSN effectively.