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Title |
Impact of Link Delay Variation on MQTT and CoAP based Communication Performances in Mobile Environment |
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Author |
OUAKASSE Fathia and RAKRAK Said |
| Citation |
Vol. 17 No. 8 pp. 187-193 |
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Abstract |
In a mobile network, the great challenge in the Internet of Things IoT is the choice of which application layer protocol to use for lightweight devices and constrained resources like Wireless Sensors Network WSN. Moreover, these constrained devices communicate very frequently using a large amount of messages and notifications which cause the handover problem. In this sense, two of the most emerging messaging protocols appropriate to address the needs of these lightweight IoT nodes are Message Queuing Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP). In this paper, we present a description of these two protocols then we evaluate their performances in the context of mobile or dynamic networks. In addition, in order to evaluate the behavior of MQTT and CoAP protocols in such a network under the condition of a mobile environment, we draw emulations based on different link delay parameters. |
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Keywords |
MQTT, CoAP, Link Delay, Packet Loss, Performance, Mobile Environment. |
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