A distributed context aware model for pervasive service environment

Context-based service is the trend of next generation service especially under the wireless pervasive computing environment. In order to provide the always best experience (ABE) under heterogeneous communication system, it's very important for applications to get support from distributed context information. So, the context aware system should have the ability of collecting, processing and providing inferred result to applications in distributed environment. In this paper, we introduce a distributed context aware model to accomplish this goal and give some explanations for every module. We have also carried out a prototype testbed to give a demonstration of this model.