An Efficient Edge-Cloud Publish/Subscribe Model for Large-Scale IoT Applications

Internet of Things applications produce enormous amounts of data that need to be collected, analyzed, transferred, and stored at best-suited places. An interplay among Cloud Computing and Fog Computing proves to be a promising solution for the Internet of Things (IoT). Publish/Subscribe (Pub/Sub) systems have been widely deployed in many IoT projects. IoT devices often directly connect to their closest brokers to send and receive data. Building an efficient broker overlay network for Pub/Sub systems to support wide geo-distribution IoT platforms is a matter of immediate concern. In this paper, we propose an efficient Edge-Cloud Pub/Sub model that coordinate brokers in the system for large-scale IoT application. Our simulation results prove that our broker overlay network can support low delay data delivery for these applications in a high scalable manner.