基于位置信息的分簇传感网数据汇聚方案  

Location- based Data Aggregation Scheme for Clustered Wireless Sensor Networks

作　　者：陈德礼[1] 郭江鸿[1] 

机构地区：[1]嘉应学院计算机学院,广东梅州514015

出　　处：《嘉应学院学报》2013年第11期9-13,共5页Journal of Jiaying University

摘　　要：数据汇聚是降低传感器网络传输能耗的重要手段.分簇传感网数据汇聚通常包括簇内汇聚及传递汇聚结果到基站两个阶段,现有方案大多关注第二阶段数据汇聚结果传递到基站的效率.现提出一种基于位置信息的分簇传感网数据汇聚方案,通过利用位置信息选择代理点,仅与代理点有不同测量值的节点进行数据发送,有效减少了第一阶段中的数据传输.理论分析与模拟试验表明,方案簇内消息发送数优于相关方案,减少了通信开销,延长了网络生命期.Data aggregation is an important method to reduce energy consumption in wireless sensor networks. Data aggregation for clustered wireless sensor networks usually consists of two phases,in- cluster aggregation and fusion data transmission from aggregators to the base station. Most of existing schemes mainly focus on the efficiency of fu- sion data transmission in second phase. The authors proposed a location- based data aggregation scheme for clus- tered wireless sensor networks to improve the efficiency of in- cluster aggregation. Agent nodes are selected with assist of nodes＇ location and only the nodes have different readings with agent nodes transmitting their data to clus- ter head,Therefore,the data transmissions in the first phase are reduced effectively. Theoretical analysis and simu- lation show that our scheme has less in- cluster transmissions than that of related schemes,which reduce the com- munication overhead and prolong the lifetime of the network.

关 键 词：传感器网络 数据汇聚 代理节点 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]