Adaptive bus model for distributed multimedia stream in mobile computing environments

The main concern of this research is to design an adaptive bus model supporting distributed multimedia computing effectively in wireless or mobile networks. Key features of the model are as follows: first, the bus model has an ability, to control the binding at various levels explicitly. In addition to typical explicit binding characteristics, it has made possible a more flexible bus configuration from the application level to the transport level by hierarchical explicit binding control and controllable visibility of explicitness for security and integrity of computing. It enables the bus to adapt more flexibly in response to fluctuation of the environments. Second, the bus model has two-layer meta-object protocols (MOP), which are the component layer MOP and binding layer MOP, for implementation of adaptation. The component MOP plays the roles of inspecting and manipulating each component in the function and resource aspect. The binding MOP plays the roles of inspecting and manipulating each binding in the topology, access and flow aspect. Its architecture makes possible adaptations in integrity. Third, the bus model makes adaptations based on profiles, which is some collected information from the user, host and networks. The profile-based adaptation has made possible self-adaptation to some degree at each level and some prediction on usage pattern or resources.