Aggregation of MQTT Topics over Integrated Satellite Terrestrial Networks
English
Palattella, Maria Rita[University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Soua, Ridha[University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Stemper, André[University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
Engel, Thomas[University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
[en] The MQTT application protocol was originally designed for monitoring a oil pipeline through the desert by collecting sensor data via satellite link. Thus, by design MQTT is very suitable for data collection over integrated satellite-terrestrial networks. Leveraging on the MQTT Bridge functionality, in this work we propose a novel architecture with two MQTT Brokers located at the satellite terminal and the satellite gateway. By using the topic pattern option, supported by the bridge, a subscriber can request several topics within a single request. To reduce the amount of traffic ex-changed over the satellite return channel, we introduce in the architecture a new entity, namely MQTT message aggregation filter, which aggregates all the MQTT topics matching
the topic pattern in the same response.