| 基于预测的节能数据分发机制 |
| |
| 引用本文： | 胡 宁,孙钦东,张德运.基于预测的节能数据分发机制[J].计算机工程,2007,33(10):103-104,107. |
| |
| 作者姓名： | 胡 宁 孙钦东 张德运 |
| |
| 作者单位： | 西安交通大学电子与信息工程学院,西安710049 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 为减少无线传感器网络的数据流量,提出了一种基于预测的数据分发机制.在源节点和sink节点分别配置相同参数的预测器,用以预测未来采样值.当在源节点处预测值和实际采样值的差异大于某门限值时,当前采样数据才会被传送到sink节点.预测器采用双指数平滑预测模型,根据历史数据去预测未来数据.实验表明,该节能的数据分发机制可以滤除83%的冗余数据而仍然保持较高的精度.
|
| 关 键 词： | 无线传感器网络 预测模型 节能策略 预测模型 节能 数据分发 机制 Forecast Based Dissemination 精度 冗余数据 实验 历史 双指数平滑 采样数据 门限值 差异 预测值 采样值 预测器 参数 配置 |
| 文章编号： | 1000-3428（2007）10-0103-02 |
| 修稿时间： | 2006-05-25 |
Energy-saving Data Dissemination Based on Forecast |
| |
| HU Ning,SUN Qindong,ZHANG Deyun.Energy-saving Data Dissemination Based on Forecast[J].Computer Engineering,2007,33(10):103-104,107. |
| |
| Authors: | HU Ning SUN Qindong ZHANG Deyun |
| |
| Abstract: | In order to decrease the traffic in the wireless sensor networks, a data dissemination scheme based on forecast is presented. Two matching predictors with the same parameters are deployed at the source and the sink respectively, which predict the next immediate sampling value simultaneously. The sampling value is sent to the sink only when the difference between the actual and the predicted value at the source exceed~s a certain threshold. The predictors adopt the double exponential smoothing forecast model to estimate the future values based on the past samples. The experiment results show that this energy-saving data dissemination scheme is very effective, which can filter about 83% data and remain high precision yet. |
| |
| Keywords: | Wireless sensor networks Forecast model Energy-saving policy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程》浏览原始摘要信息 |
|
点击此处可从《计算机工程》下载全文 |
|
