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arXiv · 2103.11760

End-to-end Precoding Validation over a Live GEO Satellite Forward Link

Jevgenij Krivochiza·Juan Carlos Merlano Duncan·Jorge Querol·Nicola Maturo·Liz Martinez Marrero·Stefano Andrenacci·Jens Krause·Symeon Chatzinotas
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Abstract

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.

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Jevgenij Krivochiza, Juan Carlos Merlano Duncan, Jorge Querol, Nicola Maturo, Liz Martinez Marrero, Stefano Andrenacci, Jens Krause, Symeon Chatzinotas. 2021-01-16. End-to-end Precoding Validation over a Live GEO Satellite Forward Link. https://arxiv.org/abs/2103.11760

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