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计算机工程 ›› 2009, Vol. 35 ›› Issue (11): 49-51. doi: 10.3969/j.issn.1000-3428.2009.11.017

• 软件技术与数据库 • 上一篇    下一篇

基于时间/能量模型的无线传感器网查询优化

胡国玲   

  1. (华东理工大学信息科学与工程学院,上海 200237)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-05 发布日期:2009-06-05

Query Optimization Based on Time/Energy Model in Wireless Sensor Network

HU Guo-ling   

  1. (School of Information Science & Engineering, East China University of Science & Technology, Shanghai 200237)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-05 Published:2009-06-05

摘要: 针对无线传感器网在数据查询过程中存在的问题,提出一种基于时间/能量模型的无线传感器网查询优化算法,每个传感器站点通过评估数据/事务的时限要求和时间/能量消耗,将查询数据直接上传到服务器,并执行压缩、合并、聚集/融合等优化处理。仿真实验结果表明,该算法是有效的,且能够获得较好的性能。

关键词: 无线传感器网, 查询处理, 查询优化

Abstract: Aiming at the problems existed in process of data query in Wireless Sensor Network(WSN), a novel query optimization algorithm based on time/energy model is proposed. Each sensor site transmits the query data to server according to the evaluation of the time constraints and the time/energy consumption. Some optimization operations such as compression, merging, and aggregation/fusion are made. Simulation experimental results show this algorithm is effective and can gain better performance.

Key words: Wireless Sensor Network(WSN), query processing, query optimization

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