无线传感器网络时钟同步的研究

Research on Time Synchronization in Wireless Sensor Networks

在无线传感器网络中,时钟同步是十分必要的.有限的电池能量,存储以及带宽限制等传感器固有的特性的存在,导致传统的时钟同步算法不适合无线传感器网络.本文阐述了时钟同步问题和时钟同步的必要性,介绍了一些传感器网络的时钟同步算法,并深入研究了在考虑节点移动的情况下,利用节点的移动来传递时钟信息的思想,模拟证明我们的算法性能良好.

In Wireless Sensor Networks, time synchronization is necessary. Some intrinsic properties of sensor networks, such as limited resources of energy, storage, computation, and bandwidth, make traditional time synchronization methods unsuitable for WSN. This article formulates the time synchronization problem and the need for synchronization in sensor networks , and also introduces some time synchronization algorithms , and make further research on the ideas of ＂carry time information with mobility of the nodes＂ when taking mobility into account, which is proved to be good by simulation.