【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。更多还原

【Abstract】 Time synchronization plays a very important role in the wireless sensor network system.MRN-SCS algorithm is not the best clock synchronization algorithm in wireless sensor networks with limited energy and bandwidth,this paper analyzes the shortcomings of MRNSCS algorithm in clock synchronization,and presents a new security real-time synchronization method,which is called "SRTS"(Secure Real-time Synchronization Method).The comparison of the simulation results show,this algorithm than MRN-SCS algorithm effectively improves the synchronization accuracy and safety.更多还原