M2M Protocols for Constrained Environments in the Context of IoT: A Comparison of Approaches
Edielson P. Frigieri, Daniel Mazzer, Luís F. C. G. Parreira

DOI: 10.14209/sbrt.2015.4
Evento: XXXIII Simpósio Brasileiro de Telecomunicações (SBrT2015)
Keywords: Constrained Internet of Things Machine-to- Machine Security Scalability
The Internet of Things movement opens new possibilities for services and business along with new technological challenges, such as power efficiency, operation in constrained environments, security, and privacy. With the expectation of a high amount of devices connected in this Future Internet, scalability is also assumed to be a challenge. To address these limitations, several protocols are being proposed. In this paper, two of them, MQTT and COAP, are presented and qualitatively compared, summarizing their main features and limitations, highlighting the best scenarios where each approach is more suitable.