Service-Oriented Publish/Subscribe Architecture for Large Scale Wireless Sensor Networks

Large scale wireless sensor networks (LSWSNs) need to provide complete solutions for users by integrating services and data into information service systems, and are more focused on their own functions. Services are playing more and more important role in LSWSNs. This paper presented an approach, called SOPSA, for modeling and implementing the architecture of LSWSNs applications using a service-oriented model. Considering bridging the gap between sensor nodes and enterprise applications where sensor data is used, SOPSA was defined by integrated LSWSNs middleware with publish/subscribe(Pub/Sub). SOPSA was composed of LSWSNs gateway, middleware, and application service. SOPSA management is designed through five function aspects, such as registration, library, routing, subscription and publishing. The analysis indicated that the middleware made SOPSA better suited to the distributing environment with multi-domain registry, and was able to support and integrate a variety of service discovery and composition. The results imply that SOPSA can be realized effectively.