Avaliação dos protrocolos MQTT e MQTT-SN no contexto da internet das coisas

Abstract

The Internet of Things intends to revolutionize the technological world, reaching areas from health to transport, improving the quality of life directly and indirectly for those involved. Advances in wireless devices allow data collection, processing and performances without any human interaction. The challenges present in the devices require research in both academic and industrial environments to propose solutions. Despite several proposed protocols, these still lack third-party evaluations of their performance to prove their excellences and deficiencies. For this, a stress environment was implemented for our broker using cloud hosting. Starting from scenarios with few resource needs until reaching a clear bottleneck point. The input parameters changed are number of clients and message frequency, as output we get latency and packet loss metrics. Finally, the behavior of the MQTT and MQTT-SN protocols is analyzed.