Publications Conference paper · Satellite IoT · 2020
Sparse Satellite Constellation Design for LoRa-based Direct-to-Satellite Internet of Things
IEEE Global Communications Conference (GLOBECOM), pp. 1–6, 2020
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Abstract
A global Internet of Things is possible by embracing constellations of satellites acting as orbiting gateways in a Direct-to-Satellite IoT (DtS-IoT). By removing the dependency on ground gateways, DtS-IoT enables a direct service on the regions illuminated by the passing-by satellite. After an in-depth overview of relevant experiments and candidate technologies, we discover that specific configurations of the Long-Range (LoRa) network protocol specification are particularly appealing to realize the DtS-IoT vision. Specifically, we profit from the maximum clock drift permitted on LoRa devices to propose the sparse satellite constellations concept. This approach significantly reduces the in-orbit DtS-IoT infrastructure at the expense of latency anyway present in resource-constrained IoT networks. We then introduce a novel algorithm comprising specific heuristics to design quasi-optimal topologies for sparse IoT constellations. Obtained results show that LoRa-compatible DtS-IoT services can already be provided world-wide with 10% and 4% of the satellites required for a traditional dense constellation, in different configurations.
Cite
DOI 10.1109/globecom42002.2020.9348042
BibTeX
@inproceedings{DBLP:conf/globecom/FraireHDGT20,
author = {Juan A. Fraire and Santiago Henn and Fabio Dovis and Roberto Garello and Giorgio Taricco},
title = {Sparse Satellite Constellation Design for LoRa-based Direct-to-Satellite Internet of Things},
booktitle = {IEEE Global Communications Conference (GLOBECOM)},
pages = {1--6},
publisher = {{IEEE}},
year = {2020},
doi = {10.1109/globecom42002.2020.9348042}
}