Comparing application layer protocols for video transmission in IoT low power lossy networks: an analytic comparison

Abstract

Wide-spread use of low power lossy networks (LLNs) in internet of things (IoT) raises numerous challenges to video transmission over those networks. Deployment of proper application layer protocols can overcome some of those challenges and be influential on video transmission over LLNs. Although there are many good researches on application layer protocols in IoT, none of them provide a review for these protocols in video transmission scenarios. In this paper a comparison among some of these protocols including AMQP, CoAP, DDS, MQTT, MQTT-SN, Websocket, XMPP, HTTP 1.1/2.0, RTP and its control protocols such as RTCP is performed. The comparison shows that the nature of LLNs make video transmission an impossible task for some of these protocols and a proper protocol such as CoAP should be adapted to be used in these low power and lossy environments.