Global Adaptation Framework for Quality of Experience of Mobile Services

Nowadays, technologies are providing the mobile terminals with the ability to access to information and multimedia services from almost anywhere at anytime. However, the challenge is that in mobile applications, the surrounding environments are continuously changing, e.g. services are entering and leaving, quality of communication channels are changing, battery is decreasing, etc. In order to obtain high quality of experience, it is important to detect these changes timely and make adaptations accordingly. Adaptation schemes are developed focusing on different specific domains, but there might be conflicts between each other thus jeopardizing the overall optimization. A global adaptation framework is urgently required to achieve global optimization, trading off among the concurrent schemes. In this paper, we are proposing such a global adaptation framework to efficiently detect the changes of system status and carry on adaptations in a global way, provide both coarse grain adaptations and fine grain ones, make best effort to eliminate possible conflicts between different adaptation schemes, deliver the fuzzy control in adaptation. Through this scheme the user’s quality of experience can be greatly enhanced.