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无线传感器节点实时同步安全方法研究 被引量:5

Research on Real- time Synchronization Security Scheme for Wireless Sensor Nodes
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摘要 时间同步在无线传感器网络系统中起着非常重要的作用。文章分析了MRN-SCS算法在时钟同步中的不足,节点在移动同步周期内、在第二个周期同步之前,随着时间的增大,时钟偏移量也会增大,在对时钟同步有较高精度要求的应用中,就需要对发生了时钟偏移的节点进行实时同步。针对这种应用场景的需求,文章提出了对节点进行安全实时同步的两种方法——基于自评机制的实时同步方法和基于移动参考节点的实时同步方法。仿真对比实验结果显示,文章算法较MRN-SCS算法更加有效地提高了同步精度和安全性。 Time synchronization plays a very important role in the wireless sensor networksystem. MRN-SCS algorithm is not the best clock synchronization algorithm in wireless sensornetworks with limited energy and bandwidth, this paper analyzes the shortcomings of MRNSCSalgorithm in clock synchronization, and presents a new security real-time synchronizationmethod, which is called MSRTSM(Secure Real-time Synchronization Method). The comparison ofthe simulation results show, this algorithm than MRN-SCS algorithm effectively improves thesynchronization accuracy and safety.
出处 《信息网络安全》 2016年第8期12-17,共6页 Netinfo Security
基金 国家高技术研究发展计划(863计划)[2015AA017204] 国家自然科学基金[61272500] 北京市自然科学基金[4142008]
关键词 安全方案 时钟同步 无线传感器 security scheme clock synchronization wireless sensor
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