Systems Architecture Study for future spaceborne Internet of Things connectivity

Ksenia Osipova, Alessandro Golkar

Research output: Contribution to journalConference articlepeer-review


Over the last decade, the world has observed an increasing need of global connectivity from single mobile users to moving transport vehicles and fixed facilities. Such a need comes from a large number of users coming online from the emerging regions of the world, as well as the increased degree of connectivity of people, and devices around the world. As demand is increasing, and is expected to increase in the future, additional developments will be required on the infrastructure side to provide enhanced connectivity services. Satellite constellation projects are being proposed to enable global connectivity, both in narrowband and broadband. Internet of Things (IoT) is a particular use case of interest for narrowband connectivity services from space. In this paper we extend the study that was originally presented at the IAC 2020, which proposed a systems architecture analysis framework for IoT connectivity via nanosatellite constellations in Low Earth Orbit. We explore the tradespace of feasible system architectures and benchmark them against foreseen market requirements in order to identify the effects of key architectural decisions having the greatest effect on system performance and lifecycle cost. We extended our framework by proposing updated connectivity demand distribution maps, considering population density data for fixed users, uncovered with mobile cell towers. We considered an extended set of architectural options, increasing the number of variables for LEO constellation cases. Finally, we investigated the impact of constellation parameters on its performance and compared the Pareto analysis results, obtained with the usage of the newly developed demand model and their previous version (normally distributed demand).

Original languageEnglish
JournalProceedings of the International Astronautical Congress, IAC
StatePublished - 2021
Externally publishedYes
EventIAF Space Systems Symposium 2021 at the 72nd International Astronautical Congress, IAC 2021 - Dubai, United Arab Emirates
Duration: 25 Oct 202129 Oct 2021


  • Global connectivity
  • Internet of Things
  • Satellite constellations
  • Tradespace analysis


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