Mobile Data Exchange Model for Large-scale Campus Network based on EXI

In large-scale campus network, large amounts of mobile data exchange frequently. Transmission time and energy are consumed too much when smart mobile devices accessing the XML-based Web services. In this paper, a data exchange model is proposed which is based on EXI(Efficient XML Interchange) standard. This model is applied to smart mobile devices with limited resources. Finite state machine is used to describe the model formally and the process of EXI encoding is also analyzed. A campus mobile learning system was developed to check the efficiency of this model. Experiments shows remarkable reduction of transmission data, time and battery consume after EXI encoding.