无线传感器网络分布式均值查询聚集算法研究  

Distributed aggregate algorithm for average query based on WSN

作　　者：刘彩苹[1] 李仁发[1] 刘喜苹[2] 

机构地区：[1]湖南大学计算机与通信学院,湖南长沙410082 [2]长沙南方职业学院,湖南长沙410208

出　　处：《通信学报》2008年第11期24-30,共7页Journal on Communications

基　　金：国家自然科学基金资助项目(60673061)~~

摘　　要：提出了一种基于无线传感器网络的分布式均值查询聚集算法——DAA,在DAA中,传感器网络中每个节点的计算过程都仅与它的邻居节点有关,算法只需在局部范围内计算结果而无需收集全局的节点信息,也不必完成数据融合以及远距离通信等任务。同时,算法会根据当前查询结果自适应地调整查询范围。理论分析和实验结果显示该算法扩展性好、功耗低,可以有效地延长网络的生命。A distributed aggregate algorithm （DAA） for average query based on WSN was proposed. In DAA, the computation process of each node in WSN used the information gathered from just a few nearby neighbors. The algorithm offered a fundamentally distributed solution to analyze data locally without necessarily collected the information of whole nodes to a single central site, and did not require data fusion and long-distance communication. The algorithm could adaptively adjust query range according to query results as well. Analytical and experimental results show that the proposed algorithm has the advantages of good scalability, low power consumption, and is able to significantly prolong system life.

关 键 词：无线传感器网络 聚集运算 分布式算法 局部算法 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]