An efficient content-based notification service routed over P2P network

Event-based, Publish/Subscribe, systems are receiving increasingly greater attention as a prevalent approach to decouple various large-scale distributed applications such as Internet wide systems. However, their efficiency is closely tied to the architecture of the underlying notification service, which conveys the event notifications from publishers to subscribers. Peer-to-Peer network topology can offer inherently bounded delivery depth, load sharing and self-organization. In this paper, we present a content-based notification service system over peer-to-peer network topology, and couple it with an efficient filter model and routing algorithms. We also study the performance of our approaches, comparing them with corresponding works. The result shows that our approaches greatly reduce network bandwidth for subscription or filter update propagation, and storage requirement for keeping filter routing information.