We are the satellite communications group in the European Space Agency. As part of a test campaign we partnered with University of the Bundeswehr, neosat, Fraunhofer IIS and Lacuna Space to test a number of IoT protocols over real GEO satellites.

In this talk you'll hear about:

• Some basic experiments with Lora over geostationary (GEO) stationary satellite, in both S- and Ku-band.
• Furthermore, you'll hear about the performances of a novel IoT protocol called Unipolar-coded Chirp-Spread Spectrum (UCSS) . This has been tested this over-the-air with Ku-band satellites and could be a promising method for very low power, low data rate uplinks. This protocol was also tested over L- and S-band GEO satellites.
• Then some results of using Telegram Splitting - Ultra Narrow Band TS-UNB (a.k.a. MIOTY) over satellite in S-band, which is also a promising method for low power, low data rate uplinks.
• Depending on how it goes, we'll show also a few results of NB-IoT tests over GEO satellite - mainly for some link budget verification - in view of on-going NB-IoT standardisation for satellite in 3GPP.

These tests are performed as part of our ARTES Future Preparation program that supports a.o. standardisation efforts.