A Spatial Communication Model for Ubiquitous Computing Services

The paper presents an approach for location-aware communications in ubiquitous computing environments. It is constructed on a symbolic location model, which links everyday objects, including non-smart objects and places, with counterpart objects, which are executable software components that are dynamically organized like a tree based on geographical containment, such as in a user-room-floor-building hierarchy. The approach enables physical entities and places to communicate with one another through their counterpart objects, even when the entities and places are not smart. It supports a mechanism to detect objects and communicate with them according to their locations. This paper presents the design for the approach and describes an implementation of it