research-article

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A community-driven approach to democratize access to satellite ground stations

Authors:

Akarsh Prabhakara,

Swarun KumarAuthors Info & Claims

MobiCom '21: Proceedings of the 27th Annual International Conference on Mobile Computing and Networking

Pages 1 - 14

https://doi.org/10.1145/3447993.3448630

Published: 09 September 2021 Publication History

Abstract

Should you decide to launch a nano-satellite today in Low-Earth Orbit (LEO), the cost of renting ground station communication infrastructure is likely to significantly exceed your launch costs. While space launch costs have lowered significantly with innovative launch vehicles, private players, and smaller payloads, access to ground infrastructure remains a luxury. This is especially true for smaller LEO satellites that are only visible at any location for a few tens of minutes a day and whose signals are extremely weak, necessitating bulky and expensive ground station infrastructure.

In this paper, we present a community-driven distributed reception paradigm for LEO satellite signals where signals received on many tiny handheld receivers (not necessarily deployed on rooftops but also indoors) are coherently combined to recover the desired signal. This is made possible by employing new synchronization and receiver orientation techniques that study satellite trajectories and leverage the presence of other ambient signals. We compare our results with a large commercial receiver deployed on a rooftop and show a 8 dB SNR increase both indoors and outdoors using 8 receivers, costing $38 per RF frontend.

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Shenoy JChabra OChakraborty TJog SVasisht DChandra RGanesan DLane NShi W(2024)CosMAC: Constellation-Aware Medium Access and Scheduling for IoT SatellitesProceedings of the 30th Annual International Conference on Mobile Computing and Networking10.1145/3636534.3690657(724-739)Online publication date: 4-Dec-2024
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A community-driven approach to democratize access to satellite ground stations

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cover image ACM Conferences

MobiCom '21: Proceedings of the 27th Annual International Conference on Mobile Computing and Networking

October 2021

887 pages

ISBN:9781450383424

DOI:10.1145/3447993

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