无线传感器网络中数据融合节点数目的确定方法研究

Study on Method of Determining Data Aggregators Number for Wireless Sensor Network

数据融合技术作为无线传感器中的一项关键技术,目的是减少节点的传输数据量,减少网络中总能量的消耗。通过对WSN中的数据融合问题分析,融合节点数存在最优值,建立了一个能量消耗模型获得理论最佳融合节点数目,通过仿真分析了融合节点数目的选取对网络性能的影响,模拟仿真得到的最佳数目与理论值基本吻合。

Data aggregation has emerged as an important technique in WSN in order to reduce the number of transmissions of sensor nodes, and hence minimize the overall power consumption in the network. Analyzing on Data aggregation in WSN, there is a optimization of data aggregators. We get the optimal number of aggregation points with a power-consumption model, and analyze the effect on the performance of net by selecting deferent number of aggregation points through simulation. The optimal number get by simulation approximates to theoretic value.