| 虚拟时钟指数逼近的无线传感器网络时钟同步协议 |
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| 引用本文： | 杨爱玲,廖兴鑫,姜传辉,付松涛. 虚拟时钟指数逼近的无线传感器网络时钟同步协议[J]. 单片机与嵌入式系统应用, 2013, 0(10): 9-12 |
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| 作者姓名： | 杨爱玲 廖兴鑫 姜传辉 付松涛 |
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| 作者单位： | [1]中国人民解放军61936部队 [2]重庆通信学院 [3]中国人民解放军61655部队,重庆402764 |
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| 摘 要： | 提出了一个基于虚拟时钟指数逼近的无线传感器网络时钟同步协议，采用一个虚拟时钟作为全网同步的基础，从而实现全网同步。由于采用虚拟时钟，使得各节点进入网络时有了统一的标准，对时钟扭曲和偏移采用指数逼近的方法，在相差较大时调整快，提高了同步效率。仿真数据证明，本协议能有效地提高同步效率，并适应于不同的网络拓扑。
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| 关 键 词： | 无线传感器网络 时钟同步 虚拟时钟 |
Time Synchronization Protocol in WSN Based on Virtual Clock Index Approximation |
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| Yang Ailing,Liao Xingxin,Jiang Chuanhui,Fu Songtao. Time Synchronization Protocol in WSN Based on Virtual Clock Index Approximation[J]. Microcontrollers & Embedded Systems, 2013, 0(10): 9-12 |
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| Authors: | Yang Ailing Liao Xingxin Jiang Chuanhui Fu Songtao |
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| Affiliation: | 1. 61936 People＇s Liberation Army; 2. Chongqing Communication College; 3. 61655 People＇s Liberation Army, Chongqing 402764,China) |
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| Abstract: | This paper presents a time synchronization protocol based on the virtual clock index approximation in wireless sensor network. As a result of a virtual clock, each node accesses the network with a uniform standard on clock drift and offset, and the more difference between the node and the virtual clock, the faster the node adjusts its drift and offset, thus improving the synchronization efficiency. Simulation data proves that the protocol can effectively improve the synchronization efficiency, and adapt to different network topologies. |
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| Keywords: | wireless sensor network time synchronization virtual clock |
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