  In this paper we demonstrate end-to-end precoded multi-user multiple-input
single-output (MU-MISO) communications over a live GEO satellite link. Precoded
communications enable full frequency reuse (FFR) schemes in satellite
communications (SATCOM) to achieve broader service availability and higher
spectrum efficiency than with the conventional four-color (4CR) and two-color
(2CR) reuse approaches. In this scope, we develop an over-the-air test-bed for
end-to-end precoding validations. We use an actual multi-beam satellite to
transmit and receive precoded signals using the DVB-S2X standard based gateway
and user terminals. The developed system is capable of end-to-end real-time
communications over the satellite link including channel measurements and
precompensation. It is shown, that by successfully canceling inter-user
interference in the actual satellite FFR link precoding brings gains in terms
of enhanced SINR and increased system goodput.
