Differentiated service of multi-tier web application

作者：Hu Yansu^*; Mu Dejun; Gao Ang; Dai Guanzhong

来源：ICIC Express Letters, Part B: Applications , 2012, 3(2): 279-284.

• Close loop
• Differentiated Services
• Multi-tier
• Pole placement
• Resource controllers
• State space model
• State-space feedback
• WEB application
• Web based

As web based inter-operability services blowout, multi-tier web application with QoS-aware and QoS-controllable demands satisfaction. This paper proposes and inspects a state space feedback MIMO model of multi-tier web application based on close loop simulation to achieve the differentiated service. Unlike classic transfer function ways used in the single tier application, the resource controller is designed by pole placement and state feedback control theory. Finally, the resource quotas assigned to different classes in every tier are finely adjusted and the proportional delay is guaranteed. The experiments demonstrate that the approach is feasible to approximate the system and the QoS relationship among different priorities can be strictly preserved.

• 出版日期2012