Abstract
This article describes the architecture and functionality of a hardware/software platform for context aware services. The implementation of the platform requires several aspects to be taken into account at different levels: technology, algorithms and context-aware applications requiring reliable position estimation. Within the Italian project on Virtual Immersive Communications [1], we realized a multiuser immersive guide taking into account several solutions and implementation for all levels. In fact, our immersive guide communicates toward heterogeneous wireless networks and collects information on the user position both indoor and outdoor through properly setup communication technologies, furnishes location information through robust algorithms, and enables access to context aware services through a graphical service-browser which interacts, following a client-server protocol, in a multiuser environments.
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