European
Consortium
Demonstrates
Ultra-High
Throughput
Transmission
over
Satellite
A
consortium
consisting
of the
Fraunhofer
Institute
for
Integrated
Circuits
IIS,
WORK
Microwave
and
AVANTI
Communications
recently
completed
highly
successful
over-the-air
trials
on
Avanti
HYLAS
satellite
capacity
employing
the
latest
DVB-S2X
modulator
and
demodulator
equipment.
The
demonstrations
used
wideband
carriers
exploiting
full
transponder
bandwidth
and
outperforming
the
target
throughput
of more
than one
gigabit
per
second
(1 Gbps)
using a
single
communication
carrier.
The
technology
demonstration
was part
of a
development
funded
by the
European
Space
Agency
(ESA)
under
the
"ARTES
Advanced
Technology"
program.
The
experiments
demonstrated
a
variety
of
carrier
bandwidths
and
modulation
schemes.
This
included
closing
the
forward
link
with a
480 MHz
carrier
and
successfully
receiving
and
demodulating
this
signal
on the
ground.
The
sustained
throughput
to a
single
end-user
terminal
was
measured
at 1.27
Gbps,
leveraging
from the
DVB-S2X
time
slicing
capability
that
allows
the
receiver
to
selectively
skip and
ignore
parts of
the
incoming
signal
and thus
save on
processing
power.
DVB-S2X
as the
latest
satellite
communication
standard
allows
for
exceptionally
efficient
use of
spectrum.
Fraunhofer
IIS
teamed
up with
WORK
Microwave
and
Avanti
Communications
to
implement
a
DVB-S2X
wideband
transmission
system
over
satellite,
including
modulator
and
demodulator.
Fraunhofer
IIS and
WORK
Microwave
were
actively
involved
in the
development,
specification
and
validation
of
DVB-S2X,
from
standardization
work to
the
implementation.
Fraunhofer
IIS
developed
a
DVB-S2X
receiver
IP,
which
was used
for the
technology
demonstration.
WORK
Microwave
develops
and
manufactures
satellite
communication
equipment
and
developed
a
high-performance
wideband
DVB-S2X
modulator,
which
was used
for the
communication
on the
uplink.
The
FPGA-based,
modular
design
of
modulator
and
demodulator
enables
different
products
and
throughput
ranges,
up to
the
maximum
spectral
efficiency
supported
by
DVB-S2X
on
wideband
carriers.
UK-based
AVANTI
Communications
provided
engineering
support
and
HYLAS
Ka-Band
transponder
capacity
for the
live
demonstration.
The
activity
was
sponsored
by ESA
under
the
ARTES
Advanced
Technology
contract
“Ultrahigh
throughput
transmission
through
wideband
Ka
transponder”.
“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”,
said
Thomas
Fröhlich,
CEO of
WORK
Microwave.
“It has
been a
tremendous
team
effort
developing
this
DVB-S2X
enabled
broadband
technology
and
putting
all
pieces
together
to
demonstrate
such a
high
throughput
system”,
said
Michael
Schlicht,
Head of
Communication
Systems
Division,
Fraunhofer
IIS. “We
are very
pleased
seeing
it now
working
live and
flawlessly
on an
actual
satellite.”
“This
trial
confirms
the
excellent
performance
of our
fleet of
satellites
when
using
the
DVB-S2X
waveform
and
state-of-the-art
ground
equipment.
We are
keeping
a close
eye on
such
wideband
technologies
to
ensure
we can
meet the
future
bandwidth
demands
of
broadband
users”,
said an
AVANTI
Communications
spokesman.
“The
successful
demonstration
of this
next-generation
technology
confirms
the
innovation-led
competitiveness
of the
European
space
industry
and the
capabilities
of the
European
satellite
fleet,
as well
as the
importance
of the
"ARTES
Advanced
Technology"
program
to fund
such
developments”,
says
Nikolaos
Toptsidis,
the
Technical
Officer
managing
the
activity
on
behalf
of ESA.
“The
DVB-S2X
air
interface
standardized
by ETSI
offers
highest
spectral
efficiency,
allows
time
slicing
operation
and
supports
very low
roll-offs.”