无线传感网数据聚集技术分析

Analysis of Data Aggregation Techniques in Wireless Sensor Networks

无线传感网通常包含大量的低成本传感器节点,传感节点的感测、能量、计算、通信能力都受到严格限制。重要的是最小化网络中的数据传输量,从而延长网络生命周期,提高信道利用率。数据聚集技术被认为是一种有效的方法,它能减少数据传输量,降低能量消耗。文章基于网络拓扑结构分析了主要的数据聚集技术,并基于目前的研究提出了今后的研究方向。

Wireless sensor networks often consist of a large number of low cost sensor nodes that have strictly limited sensing, computation, energy, and communication capabilities. It is important to minimize the amount of data transmission so that the network lifetime and the overall bandwidth utilization are improved. Data aggregation is recognized as an efficient method to reduce energy consumption by reducing the amount of data transmission. This paper presents a review on the data aggregation techniques in wireless sensor networks on the basis of network topology. Based on the existing research, the future research directions in data aggregation are provided.