基于按需服务的用户QoS偏好信息的处理策略

Treatment Strategies of QoS Preference Information Based on Service on Demand

为满足按需服务的需求,需建立处理用户QoS偏好信息的具体策略与方法.本文研究了QoS偏好信息的描述方式,提出了基于AHP判断矩阵的QoS偏好信息表示方法.该方法使用数字标度方法把QoS偏好转换为AHP矩阵,用特征向量法计算出矩阵的权重向量,从而为QoS偏好提供了量化表示.在此基础上,给出了基于QoS偏好的相对最优服务的求解策略.具体数例表明,本文中QoS偏好信息的处理方法与策略是有效的.

To meet the requirement of service on demand, it is needed to build concrete strategies and methods to deal with Quality of Service （QoS） preference information of user. The paper goes deep into description of QoS preference information and presents description way of QoS preference information based on AHP （analytic hierarchy process） judgment matrix. The description way converts QoS preference into AHP matrix with scaled number and utilizes eigenvector method to calculate the weight vector, thus a numerical representation is provided for QoS preference. At the same time, a solution strategy is put forward based on QoS preference. The example of number analysis indicates that the QoS preference treatment strategies in this paper are feasible.