摘要
时间同步是无线传感器网络技术研究的一个新热点,很多无线传感器网络应用都要求传感器节点的时钟保持同步;由于无线传感器网络自身的特点,它在同步范围、能量消耗以及同步精度上都有特殊的要求,这使传统的时间同步方法并不适合无线传感器网络,对目前典型的无线传感器网络时间同步算法进行了论述,并指出了进一步的研究方向。
Time synchronization is a new focus topic in the research of Wireless Sensor Networks. Many applications of WSN need clocks of sensor nodes to be synchronized. However, Time Synchronization for WSN has unique requirements for scope, energy-consumption and precision of synchronization result from its own characteristics, making traditional synchronization methods unsuitable for WSN. The existing typical time synchronization algorithms for WSN are discussed and presented in detail, and the future directions of research on time synchronization for WSN are forecasted.
出处
《计算机测量与控制》
CSCD
2005年第10期1021-1023,1030,共4页
Computer Measurement &Control
基金
国家自然科学基金资助项目(60472074)。
关键词
无线传感器网络
时间同步
wireless sensor networks
time synchronization
