Performance Comparison of MQTT and CoAP Protocols in Different Simulation Environments

Smart healthcare is among the most significant IoT applications. The Internet of Things (IoT) revolutionizes our viable needs that include the healthcare system. This review paper presents an overview of the two extensively used application layer protocols for IoHT systems: MQTT and CoAP. However, the choice of a standard and efficacious application layer protocol out of the two is a challenging task since it requires knowledge about the area of application and its messaging requirements. Hence, it is important to introduce their characteristics comparatively along with the selection of appropriate simulator tools to test, analyze, and validate the preexisting concepts and optimize the performance of prototypes. Subsequently, it has performed relative research based on interdependent criteria and different simulation tools to have an in-depth understanding of their pros and cons. Therefore, researchers can select their relevant application layer protocol and simulation tools based on their suitability and necessity.