Fraunhofer IIS successfully tests terrestrial IoT technology mioty® via GEO satellite

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www.iis.fraunhofer.de, Jul. 22, 2021 – 

mioty® communication technology enables the simultaneous transmission of data packets from a large number of sensor nodes over long distances and is particularly energy efficient. Previously, providing the Internet of Things (IoT) in a terrestrial network was limited to a range of up to 15 kilometers. Now, transmission tests by the Fraunhofer Institute for Integrated Circuits IIS in Erlangen, Germany, have shown that mioty® can be used via geostationary (GEO) satellites – without having to adapt the wireless protocol. Deploying the IoT via satellite allows the range of a network to be extended at will, up to and including around the globe.

Fraunhofer IIS recently tested the use of mioty® for massive IoT applications via a GEO satellite. In the test setup, the transmitters with integrated mioty® sensor nodes sent data packets directly to the satellite. Transmission in the S band at about 2 GHz was realized via the EchoStar XXI communications satellite. The transmitters used mioty®'s Telegram Splitting Ultra Narrow Band (TS UNB) wireless protocol without any special adaptations for satellite communication.

The tests were carried out as part of the European Space Agency's ARTES Future Preparation program.

Demonstrated support of massive IoT applications

With the mioty® transmission method of Telegram Splitting, data packets – i.e. "telegrams" – are split into smaller sub-packets and transmitted over different frequencies and time. The method is particularly robust against interference and allows an enormous number of sensor nodes to be served.

To fully test the total capacity of the transmission system, Fraunhofer IIS used a signal generator to virtually increase the volume of data packets sent to a huge number. The tests showed that in a defined coverage area and at a system bandwidth of only 200 kHz, up to 3.5 million telegrams per day can be successfully transmitted via satellite with mioty®.

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