计算机工程与应用2011，Vol.47Issue(21)：98-101,161,5.DOI:10.3778/j.issn.1002-8331.2011.21.025
无线传感器网络中基于关联度的多查询优化
Association degree based multiple queries optimization in wireless sensor network
摘要
Abstract
Wireless Sensor Networks (WSNs) is a data-centric network.Users pose queries from a base station to the network to obtain the required data.One of design issues in WSNs is how to utilize multiple queries optimization to reduce energy consumption of sensor nodes and thus lifetime of the entire network can be prolonged. This paper proposes an Association Degree based Multiple Queries Optimization algorithm(ADMQO) in WSNs.In ADMQO.node chooses parent node by association degrees with its candidate parent nodes.As a result, nodes covered by the same set of queries are clustered into a group,so their values can be shared among multiple queries,and aggregate queries values can be efficiently merged in net-works.These techniques can reduce the amount of transmission load in WSNs,thus extending the lifetime of wireless sensor networks.Theoretical analysis and simulation results show that the proposed algorithm can decrease the number of data transmitted, thus saving a lot of energy in the sensor nodes.关键词
无线传感网络/关联度/多查询优化/节能Key words
Wireless Sensor Networks (WSNs)/association degree/multiple queries optimization/energy efficiency分类
信息技术与安全科学引用本文复制引用
李希明,郑瑾..无线传感器网络中基于关联度的多查询优化[J].计算机工程与应用,2011,47(21):98-101,161,5.基金项目
教育部新世纪优秀人才支持计划(the Program for New Century Excellent Talents in University under Grant No.NCET-06-0686) （the Program for New Century Excellent Talents in University under Grant No.NCET-06-0686）
湖南省杰出青年科学基金项目(No.07JJ1010). （No.07JJ1010）
