Enabling technologies for future broadband Satellite ...

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Enabling technologies for future broadband Satellite communication

Michael SCHMIDT Zukunftskonferenz 7.3.2018

Why Satellite? By 2020, LTE will cover

63% of the worlds population but only 37% of the landmass. Near costal areas, 0% at sea Aeronautical

Efficient Broadcast

Wide area sensor network Backhaul

Zukunftskonferenz 2018

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5G and Satellite A Revolution in Space

High Throughput Satellites delivering 50-200 Gbps to 1 TBps by early 2020s Higher speeds including exceeding 25/3 Mbps/ Terminal (approaching 100 Mbits/sec broadband) NGSO (non-geostationary) constellations (1,000+ satellites) emerging All-IP enabling fully integrated heterogeneous networks

Dramatic Price/MB Decrease Highly cost effective - satellites


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Traditional Satellite Traditional transponders offer relatively limited capacity over relatively large areas Service areas of traditional satellites are large for a large catchment area and therefore the antenna gain is relatively low This means that the EIRP density can be maintained over a relatively small bandwidth


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© Eutelsat

High Throughput Satellites


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© ESA

High Throughput Satellites: „Multi User Detection“

Instead of discarding the information carried by the interfering signal, it is possible to decide to use both signals (transmitted from two co-channel beams) to carry useful information for the considered user. This approach is called multiple access channel (MAC)


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© ESA

High Throughput Satellites: „Precoding“ Precoding consists in the joint processing of all co-frequency signals transmitted by a given GW to its served beams. Joint processing can minimize the mutual interference between co-channel beams.


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© ESA

High Throughput Satellites: „Site diversity“ for feeder links Essential part of the Smart Gateways to scale

Throughput of feeder Availability Costs

Particular challenge for the Q/V and W band because of high fade dynamics


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High Throughput Satellites: „Feeder Links“ 1) Q/V band

Q/ V band to safe bandwidth on the user frequencies (e.g. at Ka band) New frontier in satellite communication because of challenges in the

Fade dynamics with up to 60dB Fade slopes 3dB/s Scintillations


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Alphasat Satellite with Q/V band transponder


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© ESA

Q/V band Satellite Ground-station at Hilmwarte


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Tx Freq. 47.850 - 48.150 GHz (V-Band) Rx Freq. 37.850 - 38.150 GHz (Q-Band) Bandwidth: 2 x 10 MHz Polarization (Rx & Tx) Linear Vertical


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IOT Campaign for Eutelsat 2016

High Throughput Satellites: „Feeder Links“ 2) W- band

W-Band 75/85GHz with 5 GHz bandwidth New frontier LEO Satellite: W- band and Q band Beacon with LHCP, RHCP JOANNEUM RESEARCH has the lead in this project with partners Millilab (FI) , Reaktor Space Lab (FI), Fraunhofer (DE), Uni Stuttgart (DE) , LCT ( P) Launch approx. Q4/2019 Measurement and analysis for at least 2 years Results will help for dimensioning future feeder station Only W-band signal from space!!


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Summary Satellite is needed too, to help to cover the world with broadband communication The technologies are available JOANNEUM RESEARCH is in the fore-front of this developments


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Thank you for your interest!

DI Michael Schmidt [email protected]

+43 316 876 1311

JOANNEUM RESEARCH Forschungsgesellschaft mbH

DIGITAL Steyrergasse 17

8010 Graz, Austria

www.joanneum.at/digital

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mailto:[email protected]

Enabling technologies for future broadband Satellite ...

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