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Internet of Things (IoT) Protocols: A Brief Exploration of MQTT and CoAP

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2018
Danish Bilal Ansari, Atteeq-Ur-Rehman, Rizwan Ali Mughal

Danish Bilal Ansari, Atteeq-Ur-Rehman and Rizwan Ali Mughal. Internet of Things (IoT) Protocols: A Brief Exploration of MQTT and CoAP. International Journal of Computer Applications 179(27):9-14, March 2018. BibTeX

	author = {Danish Bilal Ansari and Atteeq-Ur-Rehman and Rizwan Ali Mughal},
	title = {Internet of Things (IoT) Protocols: A Brief Exploration of MQTT and CoAP},
	journal = {International Journal of Computer Applications},
	issue_date = {March 2018},
	volume = {179},
	number = {27},
	month = {Mar},
	year = {2018},
	issn = {0975-8887},
	pages = {9-14},
	numpages = {6},
	url = {},
	doi = {10.5120/ijca2018916438},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


The concept of the Internet of Things emerged a long time ago, having enormous development in sensing devices and every-day-objects connected to the internet. With current internet infrastructure, wireless communication plays a vital role in IoT devices allowing them to transmit messages. Therefore, the vitality of these messages lies in authentication. Numerous key management techniques have also been introduced to provide a secured transmission over the internet. In the context of IoT, many protocols have been devised for authenticated and secured transmission, including XMPP, AMQP, and LWM2M. Addition to above, MQTT and CoAP are also extensively used protocols in most M2M communication. This survey paper is an exploration of these protocols and also exemplify the comparison between them.


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Internet of Things, IOT, MQTT, COAP, Messaging Format of MQTT and CoAP, Security in MQTT and CoAP