无线传感器网络能量有效性的评估指标分析

摘要

能量的有效使用是决定无线传感器网络长期可靠运行的重要因素，而对其的度量，则反映在能量有效性评估指标。根据无线传感器网络节点的能耗分布，采用分类对比的方法简述了无线传感器网络节点的能耗分布，分析并提出了影响无线传感器网络能量有效性的关键因素。针对能量有效性评估指标的选择，通过研究关键因素对现有能量有效性评估指标的影响，分类并比较了这些指标的适用范围和特点。结果表明不同应用场景应选择合适的能耗评估指标，这些指标的分类为无线传感器网络能量有效性评估指标的选择与优化提供指导。%As an important factor,the effective use of energy makes the wireless sensor networks operate in long-term and reliably, therefore,its measurement is reflected in the energy efficiency evaluation metrics.Based on the power consumption distribution of nodes in WSNs,we give a brief on the power consumption of nodes in WSNs in the way of classified comparison,and analyse and present the key factors affecting the energy efficiency of WSNs as well.Focusing on the choice of energy efficiency evaluation metrics,and through studying the influence of key factors on existing energy efficiency evaluation metrics,we classify and compare the availability scope and features of these metrics.Results indicate that proper energy efficiency evaluation metrics should be chosen for different applied scenes.The classification of these metrics provides the guidance for choosing and optimising the evaluation metrics of energy efficiency in WSNs.