WSN中时间同步技术发展研究  

On the development and application of time synchronization for WSN

作　　者：王安义[1] 柯磊[1,2] 刘涛[2] 曾婷[2] 

机构地区：[1]西安科技大学通信与信息工程学院,陕西西安710054 [2]中国科学院国家授时中心,陕西西安710600

出　　处：《微型机与应用》2014年第16期3-5,9,共4页Microcomputer & Its Applications

摘　　要：针对无线传感器网络WSN重要技术之一的时间同步技术研究了几种时间同步技术的实现过程。典型同步技术应用于大规模无线传感器网络时鲁棒性和可扩展性受到限制,在此基础上重点研究新的同步技术——协作同步和萤火虫同步。协作同步解决了多跳误差累积的情况;萤火虫同步机制简单,平等对待各个节点,可扩展性和鲁棒性优越。通过对国内外学者的研究成果进行探讨总结,指出了未来时间同步技术的研究重点和方向。Because time synchronization is one of the important technology of WSN, the realization of time synchronization technology for WSN is summarized. It is concluded that the application of typical technology for large scale WSN is restricted. On this basis, the fireflies synchronization and cooperative synchronization as new technology are researched emphatically. Cooperation synchronization can solve the accumulated error in multi-hop. For treating all nodes equally and easy synchronous mechanism , the scalability and robustness of firefly synchronization are preferable. The future researching direction and focus are also discussed.

关 键 词：无线传感器网络 时间同步 萤火虫同步 协作同步 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]