IoT Application Protocols Optimisation for Future Integrated M2M-Satellite Networks

Satellites are playing a key role in driving the vision for a truly connected world, providing ubiquitous coverage and reliability in places where no other terrestrial technology could. While the potentials of satellites for Internet of Things (IoT) are well recognised, to allow a smooth integration of Machine-toMachine (M2M) and satellite networks, a lot of tweaking and optimising is still required. The M2MSAT project, funded by the European space Agency (ESA) is contributing to fill this gap, investigating optimisations for Message Queuing Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP), identified as IoT Application Protocols suitable for IoT data collection over satellite. This work outlines the efficient configuration of MQTT and CoAP in an integrated M2MSatellite network, and presents some optimisations, designed taking into account the peculiarities of satellite links.