Network-aware Publish-Subscribe Protocols for IoT scenarios

Application protocols employing the publish-subscribe messaging pattern provide many advantages for IoT scenarios. For instance, the Message Queue Telemetry Transport (MQTT) tolerates long breaks in connectivity and provides low energy consumption. However, there is lack of research on the behavior of such protocols under challenging scenarios. Preliminary studies show that mobility affect the operation of such solutions, resulting in jitter variability and decrease of performance due to packet retransmission. This work aims at providing adaptive features to application protocols under the publish-subscribe paradigm. A special study case is the handover in IEEE 802.11 in which mobility and packet retransmissions are expected during a short period of time.