无线传感器网络中信息精确度与能耗的关系综述

摘要

Wireless sensor networks (WSNs) are characterized by small and low power sensors with limited sensing, computing and communicating capabilities. While energy efficiency is a dominant consideration in such energy constraint WSNs, information accuracy is another essential consideration no matter what applications are. However, tradeoffs between energy efficiency and information accuracy are inevitable in resource constraint WSNs. This motivates us to present an overview of the major factors related to these two issues. The current state of the art of the research work on these two issues has been evaluated, where different approaches are discussed under their related major factors. Some open research are also point out issues to guide more efficient optimization between energy efficiency and information accuracy.%无线传感器网络由微小的能量有限的无线传感器节点组成.这种网络的主要目标就是采集信息.因此,能量有效性和信息精确度就是无线传感器网络应用中最主要的指标.在这个资源严重受限的网络中,任何一种数据采集的方法必然是以上两个指标的折衷处理.这就促使对这两个指标之间的关系进行调查.对涉及到能量有效性和信息精确度的研究工作进行了调查、分类和总结,并且指出了各类工作中的开放性研究点,用于启发设计既节能又精确的数据采集方法.