Critical analysis of Communication Protocols to Support the Quality of Services in IoT-based Infrastructures

One of the challenges in a modern IoT infrastructure is to support the communication model with the ability to adapt to the situation (e.g. congestion) in a transport environment. Within this paper, the overview of communication protocols to support the QoS needs in IoT infrastructures is presented. IPFIX protocol, its architecture, protocol messages, headers, and communication model has been outlined. The mechanism of the TinyIPFIX transformation using mediation, template management processes and scenarios of its application is described and the architecture for the monitoring of the IoT infrastructure based on TinyIPFIX implementation has been proposed. Since there is no universal protocol defined in IoT, the paper is providing also an insight into the communication protocols from the point of view of their classification based on the OSI layer they are working on and on the transmission range. Presented mechanisms allow the existing infrastructure to be easily extended by the IoT environment protocols where the guarantee for the quality of transmission is crucial.