摘要
提出一种有效支持连续窗口查询的处理方法FCWQE,包括延迟可计算的四色着色法FCDC对查询窗口内的传感器节点进行着色、划分逻辑簇以及建立路由;能量有效性的逻辑簇头选择策略以及路由维护算法,以减少传感器节点的能量消耗,延长其使用寿命;在数据收集时,提出一种基于路由的数据聚集方法DAR对簇间的数据进行收集返回结果.在收集簇内数据时,仅传输差异度满足用户定义的数据,从而减少了传输量,节省了能量的消耗,延长了网络的使用寿命.
Proposed FCWQE, which is effectively supporting continuous window query in wireless sensor networks . And it includes FCDC （Four-color with Delay Computation） method to color the sensors, partition the logic clusters and build the routing ; In order to save the energy and prolong the networks lifetime, this paper brings forward strategies to choose cluster leader and routing maintenance thinking about energy. At the process of data collection, DAR （Data Aggregation based-on Routing） is proposed to deal with the data transmission among clusters. The scheme, which is only transmitting the data satisfied the difference that the users define, is used in data collection in cluster in this paper to save energy and prolong networks lifetime.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第3期466-471,共6页
Journal of Chinese Computer Systems
基金
辽宁省2005年博士启动基金项目(20041029)资助
国家“八六三”高科技研究发展计划基金项目(CIMS主题)(2002AA1Z2308,2002AA118030)资助
关键词
无线传感器网络
窗口查询
簇
wireless sensor networks
window query
cluster
