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EVENT DISSEMINATION SERVICE FOR PERVASIVE COMPUTING

Event-based computing is a generic enabler for the next generation mobile services and applications that need to meet user requirements irrespective of time and location. The event paradigm and publish/subscribe systems allow clients to asynchronously receive information that matches their interests. We outline an event architecture for mobile computing that addresses two key requirements: terminal mobility and user mobility. The system consists of access servers, event channels and a mechanism for locating event channels. The architecture uses filter covering and merging for supporting high accuracy in event delivery, reducing communication cost, and improving event processing on terminals and servers. Experimental results based on the merging system are also examined.