中文摘要：

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汇聚结果传输，现有方案大多关注簇构造或簇内汇聚结果传递到基站的效率．文章提出一种分簇传感网簇内数据汇聚方法，通过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，减少了簇内数据汇聚中的数据传输量．分析与试验表明，与相关方案比较，文章方案簇内汇聚的数据传输量较小，降低了通信开销．

英文摘要：

Data aggregation is an important method to reduce energy consumption in wireless sensor networks. Data aggregation for cluster--based wireless sensor networks usually consists of in--cluster aggregation and fusion data transmission, most of existing schemes are mainly focus on the cluster construction or the efficiency of fusion data transmission. Authors proposed an inner--cluster data aggregation scheme for wireless sensor networks, agent nodes are selected with assist of location information and only the nodes have different readings with agent nodes transmit their data to cluster head, thus reduce the inner-- cluster transmissions. Analysis and experiments show that our scheme reduces inner--cluster transmissions effectively and lowers the enmrnnnir~tlnn nvorhonr/