CONTENT-BASED EVENT ROUTING WITH FILTER PROPAGATION

摘要: OF THE THESIS Content-Based Event Routing with Filter Propagation by DAN DAVIS Thesis Director: Prof. Manish Parashar Publisher/subscriber is the emerging interaction paradigm in loosely coupled applications due to its inherent scalability. However, addressing heterogeneity and dynamism user interest system state remains a key challenge publisher/subscriber systems. Existing distributed event systems address these concerns at centralized hubs, end points, or require flood broadcasted advertisements. Many have been implemented tested on small overlay networks hope that algorithms will scale larger networks. This thesis presents routing protocol for uses multicast trees propagate content-based filters toward publishers widely network. propagation makes this naturally distributed, efficient, scalable. Network simulation results demonstrate reduces unwanted traffic adjusts changes subscription network topology. The compatibility of wireless protocols, minimization approximation predicates are also discussed.