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EnglishA global Internet of Things is possible by embracing constellations of satellites acting as orbiting gateways in a Directto- 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 quasioptimal 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.
Sparse Satellite Constellation Design for LoRa-based Direct-to-Satellite Internet of Things / Fraire, Juan A.; Henn, Santiago; Dovis, Fabio; Garello, Roberto; Taricco, Giorgio. - (2020), pp. 1-6. ((Intervento presentato al convegno 2020 IEEE Global Communications Conference tenutosi a Taipei, Taiwan nel December 2020 [10.1109/GLOBECOM42002.2020.9348042].
| Titolo: | Sparse Satellite Constellation Design for LoRa-based Direct-to-Satellite Internet of Things | |
| Autori: | ||
| Data di pubblicazione: | 2020 | |
| Abstract: | A global Internet of Things is possible by embracing constellations of satellites acting as orbi...ting gateways in a Directto- 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 quasioptimal 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. | |
| ISBN: | 978-1-7281-8298-8 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 2020 c2 sparse globecom_x.pdf | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri | |
| 2020 c2 sparse globecom.pdf | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2872182
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