Design of Universal Broker Architecture for Edge Networking

The number of network interfaces presented is soaring, and the Internet of Things (IoT) devices are now facing more complex networking operations. Extensive efforts are needed to combine these various network interfaces in expanding IoT environment. We suggest a design of Universal Broker architecture to integrate the diversified network interfaces. Any IoT applications could use the Universal Broker for transparent communications between different network technologies. We adopt MQTT for overall network message exchanges. We implement a testbed for three candidate network interfaces, Wi-Fi, LTE-M, and LoRa, working on a single broker. By proving the proper operations of a single broker for network heterogeneity, we expect an effective expansion of IoT applications for future edge networking environment.