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Non-linearized amplifier and advanced mitigation techniques: DVB-S2X spectral efficiency improvement

Lucciardi, Jean-Alain and Potier, Philippe and Buscarlet, Guillaume and Barrami, Fatima and Mesnager, Gilles Non-linearized amplifier and advanced mitigation techniques: DVB-S2X spectral efficiency improvement. (2018) In: IEEE GLOBECOM 2017, 4 December 2017 - 8 December 2017 (Singapore, Singapore).

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Official URL: https://doi.org/10.1109/GLOCOM.2017.8255091

Abstract

The latest standardization DVB-S2X increases the achievable spectral efficiency of the satellite communications by around 15% in AWGN channel. In order to benefit from those improvements, the strong non-linear distortions introduced by the payload have to be overcome, mostly taking high back-off on the amplifier operation point. Nowadays, on- board amplifiers are linearized before being deployed, allowing low-complexity transmitters and receivers at the detriment of the payload's cost and reduced energy efficiency. In this paper, various techniques are investigated for the purpose of spectral efficiency improvement while releasing the amplifier linearization constraint. Iterative pre-distortion at the transmitter, turbo- equalization at the receiver and appropriate waveforms for transmission through non-linearized payload appear as strong candidates considering the results of this study.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at https://ieeexplore.ieee.org/document/8255091. This papers appears in 2017 IEEE Global Communications Conference (GLOBECOM) : Proceedings. Electronic ISBN: 978-1-5090-5019-2. The original PDF of the article can be found at: https://ieeexplore.ieee.org/document/8255091 Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
HAL Id:hal-02651509
Audience (conference):International conference proceedings
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Institution:Other partners > IRT Saint Exupéry - Institut de Recherche Technologique (FRANCE)
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Deposited On:13 May 2020 14:34

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