Time synchronization in sensor networks: A survey
Time synchronization in sensor networks: A survey
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DOI：
10.1109/mnet.2004.1316761
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发表时间：
2004-07-01
期刊：
影响因子：
9.3
通讯作者：
Yener, B
中科院分区：
文献类型：
--
作者：
Sivrikaya, F;Yener, B
时间同步是传感器网络等多跳自组织无线网络中的一个重要问题。传感器网络的许多应用需要传感器节点的本地时钟被同步，这要求不同程度的精度。传感器网络的能量、存储、计算和带宽资源有限，加上节点密度高，使得传统的同步方法不适用于传感器网络。因此，有越来越多的研究集中在设计同步算法专门为传感器网络。本文回顾了传感器网络中的时间同步问题和对同步的需求，然后详细介绍了为传感器网络设计和提出的基本同步方法。
Time synchronization is an important issue in multihop ad hoc wireless networks such as sensor networks. Many applications of sensor networks need local clocks of sensor nodes to be synchronized, requiring various degrees of precision. Some intrinsic properties of sensor networks, such as limited resources of energy, storage, computation, and bandwidth, combined with potentially high density of nodes make traditional synchronization methods unsuitable for these networks. Hence, there has been an increasing research focus on designing synchronization algorithms specifically for sensor networks. This article reviews the time synchronization problem and the need for synchronization in sensor networks, then presents in detail the basic synchronization methods explicitly designed and proposed for sensor networks.