Ensuring Interoperable IoT Device-to-Cloud Communication between AWS and Azure Infrastructures

This paper describes the interaction between the Internet of Things (IoT) device and the IoT infrastructure in its two different implementations: Amazon Web Services and Microsoft Azure. Both implementations support MQTT-based communication with IoT devices; however, the details of protocol implementation and the interfaces provided to the IoT device are somewhat different. The development of the IoT device firmware that enables communication with both infrastructures and allows the device to be portable between them needs to take these differences into consideration.