European project demonstrates 1 Gbps satellite broadband
Wed 10 May 2017
A European consortium has successfully demonstrated one gigabit per second (1 Gbps) broadband over satellite.
The project, which involved the Fraunhofer Institute for Integrated Circuits (IIS), Avanti Communications and Work Microwave, trialled the latest DVB-S2X modulator and demodulator equipment across Avanti’s HYLAS satellite capacity.
Using wideband carriers, the trials exploited full transponder bandwidth and outperformed the project’s target throughput of more than 1 Gbps using a single communication carrier.
The technology demonstration was carried out across a variety of carrier bandwidths and modulation schemes, including closing the forward link with a 480 MHz carrier and successfully receiving and demodulating the signal on the ground.
Sustained throughput to a single end-user terminal was measured at 1.27 Gbps. This was achieved by leveraging the DVB-S2X time slicing capability which allowed the receiver to selectively skip and ignore parts of incoming signal and therefore save on processing power.
‘DVB-S2X as the latest satellite communication standard allows for exceptionally efficient use of spectrum,’ said Fraunhofer in a statement on the trials.
Fraunhofer IIS and Work Microwace worked together on the development, specification and validation of DVB-S2X, from initial standardisation to full implementation. Fraunhofer IIS also developed a DVB-S2X receiver IP, used in the demonstration, while Work Microwave developed a high-performance wideband DVB-S2X modulator, used for communication on the uplink.
‘By using DVB-S2X waveforms and our wideband ground equipment the capabilities of high-throughput satellites can be fully exploited. This gives satellite operators the future perspective to meet the growing bandwidth demands of broadband applications,’ commented Work Microwave CEO, Thomas Fröhlich.
The experiment was funded as part of the European Space Agency’s (ESA) ‘ARTES Advanced Technology’ programme.
Speaking on behalf of ESA, Nikolaos Toptsidis, the technical officer managing the project, noted that the demonstration confirms the competitive and innovative nature of the European space industry and the capabilities of the European satellite fleet.