| 无线传感器网络整合时钟同步方案 |
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| 引用本文： | 何立明. 无线传感器网络整合时钟同步方案[J]. 计算机工程, 2009, 35(20): 112-114 |
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| 作者姓名： | 何立明 |
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| 作者单位： | 长安大学信息工程学院,西安,710064 |
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| 基金项目： | 国家"863"计划基金资助项目 |
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| 摘 要： | 针对多数无线传感器网络时钟同步方案存在的仅纠正时钟偏移问题,提出一种新的解决方案,整合时钟偏移同步和时钟速率同步,通过3个连续的消息传输实现单跳同步,采用分层的生成树实现多跳同步。仿真实验结果表明,与现有的同步方案比较,该方案的同步错误更小,能够获得更长的再同步周期。
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| 关 键 词： | 无线传感器网络 时钟同步 时钟偏移 时钟速率 |
| 修稿时间： | |
Integrated Clock Synchronization Scheme in Wireless Sensor Networks |
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| HE Li-ming. Integrated Clock Synchronization Scheme in Wireless Sensor Networks[J]. Computer Engineering, 2009, 35(20): 112-114 |
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| Authors: | HE Li-ming |
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| Affiliation: | (School of Information Engineering, Chang’an University, Xi’an 710064) |
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| Abstract: | Aiming at the problems that for the existed synchronization schemes in Wireless Sensor Networks(WSNs) have a main drawback that they only correct the clock offset, a novel clock synchronization scheme is proposed to integrate clock offset synchronization and clock rate synchronization. In this scheme, single-hop synchronization is based on three consecutive message transmissions, and multiple-hop synchronization is based on a layered spanning tree. Simulation experimental results show this scheme can achieve longer resynchronization period and less synchronization error than existed ones. |
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| Keywords: | Wireless Sensor Networks(WSNs) clock synchronization clock offset clock rate |
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