无线传感器网时间同步算法的比较

随着无线传感网的应用领域不断扩大,基于无线传感网的时间同步协议已经受到越来越多的研究人员的关注。以时钟模型为基础,就几种经典的无线传感器网时间同步协议,根据协议的原理分析了这几种协议的误差来源;并对萤火虫同步算法的原理作了论述,这种算法是通过由脉冲耦合振荡器发出的一系列脉冲信号来改变节点振荡器的相位,从而达到同步。为今后时间同步协议精度和效能的研究提供了一定的参考。

Comparison with Time Synchronization Algorithms in WSN

Providing a powerful synchronization system is one of the most important goals to be pursued if an efficient utilization of WSN has to be addressed.This paper evaluates several classic time synchronization protocols based on clock model,and presents the sources of error on the basis of their elements.In detail,firefly algorithm achieves synchronization via a series of pulses emitted by pulsecoupled oscillators.The conclusions provide some reference for future study of improving the synchronization accuracy and efficiency.