A Query Quality Optimization Algorithm in IEEE 802.15.4-based Wireless Sensor Networks

Computer Engineering and Applications ›› 2006, Vol. 42 ›› Issue (20): 4-.

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A Query Quality Optimization Algorithm in IEEE 802.15.4-based Wireless Sensor Networks

上海交通大学

Received:2006-04-06 Revised:1900-01-01 Online:2006-07-11 Published:2006-07-11

基于802.15.4的无线传感器网络查询质量优化算法

毛剑琳,吴智铭

上海交通大学

通讯作者: 毛剑琳 jlmao

Abstract

Abstract: From the point of view of MAC layer definition in IEEE802.15.4, a query quality optimization problem in a cluster-based wireless sensor network is discussed. An optimization model is presented, whose objective is to maximize the quality of query, subject to the bandwidth limitations. Combining the dynamic program method and dynamic quality of query factor updating algorithm, a Dynamic Query Quality Guaranteed (DQQG) algorithm is proposed. The simulation results show that DQQG algorithm can improve the real-time bandwidth utility and decrease the query response time. Additionally it can provide corresponding query services according to the different service demands.

Key words: Wireless Sensor Network, IEEE 802.15.4, Query, Optimization

摘要： 在簇形结构的无线传感器网络中，针对基本单元簇，在IEEE 802.15.4协议的MAC层讨论查询质量的优化问题。建立了以查询质量为目标，带宽限制为约束条件的优化模型，并提出了动态规划法和查询质量因子动态更新算法相结合的动态查询质量保证算法。仿真实验表明，该方法能提高IEEE 802.15.4的实时带宽利用率，减少查询响应时间，并能根据不同的查询质量要求提供相应的服务。

关键词: 无线传感器网络, IEEE802.15.4, 查询, 优化

,. A Query Quality Optimization Algorithm in IEEE 802.15.4-based Wireless Sensor Networks[J]. Computer Engineering and Applications, 2006, 42(20): 4-.

毛剑琳,吴智铭.

基于802.15.4的无线传感器网络查询质量优化算法

[J]. 计算机工程与应用, 2006, 42(20): 4-.

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A Query Quality Optimization Algorithm in IEEE 802.15.4-based Wireless Sensor Networks

基于802.15.4的无线传感器网络查询质量优化算法

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