计算机技术与发展Issue(5)：42-46,5.DOI:10.3969/j.issn.1673-629X.2013.05.011
改进的无线传感器网络平均时间同步算法
Improved Average Time Synchronization Algorithm in Wireless Sensor Networks
摘要
Abstract
In most of previous time synchronization algorithms for wireless sensor networks (WSN),common nodes often synchronize their clocks to a reference (or root) node,which is easily disturbed by incidental events (like invalidation of circuit or power down of root node). In this paper,IATS (Improved Average Time Synchronization) algorithm,which synchronizes all the nodes’ clock to their average,is presented based on the improvement of the ATSP (Average Time Synchronization Protocol). First of all,ROS (Receiver-On-ly Synchronization) approach is adopted in IATS,which aims at minimizing the number of message transmissions without loss in syn-chronization accuracy. What’s more,a diffusion-based method using ROS,which finds the optimum set of pairwise synchronization for energy conservation,spreads the local time synchronization to the entire network to achieve global synchronization. The novel ideas and methods in the dissertation have been studied and verified through theoretic analysis and simulations,which have showed the feasibility.关键词
无线传感器网络/平均时间同步/扩散同步Key words
wireless sensor networks/average time synchronization/diffusion synchronization分类
信息技术与安全科学引用本文复制引用
倪泽宇,姚放吾,张磊,席旭..改进的无线传感器网络平均时间同步算法[J].计算机技术与发展,2013,(5):42-46,5.基金项目
江苏高校优势学科建设工程资助项目(yx002001) （yx002001）
