COAP AND MQTT PROTOCOLS IN THE INTERNET OF THINGS
DOI:
https://doi.org/10.51453/2354-1431/2024/1147Keywords:
MQTT, CoAP, application layer protocols, Internet of Things, IoT, wireless sensor networkAbstract
Alongside the explosion and development of technology, the Internet of Things (IoT) - the network that connects everything to the internet - can be considered the trend and future of the world. In order for devices to communicate with each other, they will require one or more protocols, which can be seen as specialized languages to solve specific tasks. This paper aims to survey the two most promising protocols for the application layer in the IoT network: MQTT (Message Queuing Telemetry Transport) and CoAP (Constrained Application Protocol). Based on research results on architecture, transmission methods, publish/subscribe mechanisms, response/acknowledgment, security, and Quality of Service (QoS), a comparison between the two protocols will be conducted, followed by observations on their application scopes for IoT designs.
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