一种无线传感器网络服务质量(QoS)评价方法

Method to Evaluate WNS QoS

无线传感器网络QoS评价是一个复杂的多属性决策问题.本文分析各种QoS路由优化算法.根据理想化无线传感器网络QoS的评价指标体系,借助Vague集的方法将无线传感器网络QoS评价中的不确定指标转化为Vague值.通过正理想对象和负理想对象的定义,确定了待评价对象与正负理想对象之间的距离,并利用记分函数值定义了定性指标的Vague值,进而通过加权法得到了待评价对象的评估值.

The evaluation of Wireless Sensor Network（WNS） QoS is a complex multi-attribute decision making problem. In this paper,we analyze all kinds of QoS routing optimization algorithms. According to the evaluation index system of ideal WNS QoS and by using the method of Vague set,uncertain indices in the evaluation of WNS QoS are transferred into Vague values. Through the definition of the positive ideal and negative ideal object,the distance between the object to be evaluated and the positive or negative ideal object is identified. Finally,by using the score function value to define the qualitative index of Vague values,and then through weighting method,the evaluation value of the object to be evaluated is obtained.