Elapsed Time of IoT Application Protocol for ECG: A Comparative Study Between CoAP and MQTT

Smart devices adopt different IoT application protocols to achieve interoperability across various nodes of the IoT network. CoAP and MQTT are two application protocols among a set of available IoT application protocols, and e-health is a vital IoT domain where the performance is highly considered. This paper studies performance of CoAP and MQTT protocols using elapsed time as a metric and different simulations for ECG devices conducted in the form of three experiments to study the elapsed time of each protocol. CoAP shows better performance when the number of connected sensors is increased. The results of the paper contribute to the selection of the adopted IoT application protocols for ECG devices specifically, and e-health and IoT devices in general.