基于反射式中间件的移动计算模型

Mobile Computing Model Based on Reflective Middleware

为解决移动计算环境中服务质量控制问题,提出一种移动服务计算模型。模型包括环境感知层、中间件层和服务器层,使用反射技术在应用程序运行时检查服务器的资源状况,根据预先设定的策略动态地调整系统资源,以适应具体应用的资源需求。实验结果表明,该模型可以使客户端在高负载情况下获得更多的服务器资源,并有效减小服务器端的响应时间。

Considering the Quality of Service（QoS） controlling question in the mobile computing environment,this paper designs a mobile service computing model including layer of the environmental awareness,middle level and sever level.The use of the reflecting technology checks the resource situation of the server in the application of the programme.In accordance with the predetermined stratigic dynamic to adjust systematic resources,it can comply with specific resource demands.Experimental results show that the model can make client achive more server resources in the case of high capacity and reduces responding time effectively,and be suitable for limitation of the mobile equipments.