基于分簇的无线传感器网络数据聚合方案研究

数据聚合技术是目前无线传感器网络中的研究热点,同时也是一种重要的节能技术之一。在基于分簇网络拓扑结构的基础上,提出了一种新的数据聚合方案。分别对簇内成员节点和簇头节点进行数据聚合处理,簇内节点引入相对信息熵减少数据量的发送,而簇头节点维持一个反馈比较值,当接收到簇内成员节点发送的数据或得到自身传感器模块的数据时,该值可以用来判断是否转发接收到的数据。通过与LEACH协议的仿真对比实验,结果表明新方案能有效减少网络中的数据包传送数目,降低节点能耗,并显著地延长了网络寿命。

Research on the scheme of data aggregation based-on clustering wireless sensor network

Data aggregation is hotspot researching and an important energy saving techniques in wireless sensor network at present.Based on clustering,the paper proposes a new scheme of data aggregation,which has different aggregation strategy on nodes of cluster member and cluster head.The cluster member uses comparatively entropy to reduce the sending data,and the cluster head maintains a feed back value,which uses to estimate whether transmit the data packet when it receives from the cluster member or from itself's...