低能耗状态下无线传感器网络的定位和时间同步机制研究  

Research on Localization and Time Synchronization Mechanism ofWireless Sensor Networks under Low Energy Consumption

作　　者：易月娥[1] YI Yue-e(Changsha Social Work College,Changsha,Hunan,China 410004)

机构地区：[1]长沙民政职业技术学院,湖南长沙410004

出　　处：《湖南邮电职业技术学院学报》2022年第3期21-24,共4页Journal of Hunan Post and Telecommunication College

基　　金：2018年湖南省教育厅科学研究项目“面向物联网的无线传感器网络时间同步与寻址策略研究”(项目编号:18C1810)。

摘　　要：时间同步机制是分布式系统框架的一个关键机制。分布式无线传感器网络广泛使用的同步机制,通常在范围、能耗、寿命以及精度等方面有较高的要求。针对无线传感器网络对时间同步机制的要求,提出一种低能耗同步方案,以实验仿真的形式产生对不同模型以及网络拓扑结构下各种指标数值结果,验证了在较少的能量供给下实现短暂的、局部的、但高精度的同步。Time synchronization mechanism is a key mechanism of distributed system framework.The widely used synchronization mechanism in distributed wireless sensor networks often has high requirements in terms of range,energy consumption,lifetime and accuracy.This paper proposes a low-energy synchronization scheme according to the requirements of the time synchronization mechanism in wireless sensor networks.In the form of experimental simulation,the numerical results of various indicators under different models and network topologies are simulated,and it is verified that short-term,local and high-precision synchronization can be achieved under the condition of less energy supply.

关 键 词：无线传感器网络 时间同步 低能耗 

分 类 号：TN929.5[电子电信—通信与信息系统]