TY  - JOUR
T1  - A Comparative Study of MQTT and CoAP Application
Layer Protocols via. Performances Evaluation
AU - Ouakasse, Fathia AU - Rakrak, Said 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 15
SP  - 6053
EP  - 6061
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.6053.6061
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.6053.6061
KW  - Application layer protocols
KW  -CoAP
KW  -comparison
KW  -MQTT
KW  -performances
KW  -scenarios
AB  - Everyday objects are generating a large amount of data via. different technologies like Radio
Frequency Identification (RFID) and Wireless Sensors Network (WSN). This data should be stored and
communicated via. protocols. Two of the most important protocols used in the Internet of Things for
lightweight devices and constrained resources and based on publish/subscribe model are Message Queuing
Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP). In this study, we describe and
compare these two emerging messaging protocols to address the needs of these lightweight IoT nodes, we
reveal some of their limitations then we quantitatively evaluate their performances using a network emulator
allowing to emulate throughput, latency and inter-arrival time using different scenarios and metrics and finally,
we conclude with some future directions.
ER  -