Non-linearized amplifier and advanced mitigation techniques: DVB-S2X spectral efficiency improvement
| Autor: | Fatima Barrami, G. Mesnager, Guillaume Buscarlet, Jean-Alain Lucciardi, Philippe Potier |
|---|---|
| Přispěvatelé: | IRT Saint Exupéry - Institut de Recherche Technologique (FRANCE), IRT Saint Exupéry - Institut de Recherche Technologique |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Optimization
Computer science Equalization (audio) 050801 communication & media studies 02 engineering and technology Data_CODINGANDINFORMATIONTHEORY 7. Clean energy Receivers symbols.namesake 0508 media and communications Signal-to-noise ratio Digital Video Broadcasting 0202 electrical engineering electronic engineering information engineering Electronic engineering Waveform Channel models Computer Science::Information Theory Modulation Signal to noise ratio Payload Amplifier Complexity theory Payloads 05 social sciences Transmitter 020206 networking & telecommunications Spectral efficiency Systèmes embarqués Additive white Gaussian noise Transmission (telecommunications) Communications satellite symbols [INFO.INFO-ES]Computer Science [cs]/Embedded Systems |
| Zdroj: | 2017 IEEE Global Communications Conference (GLOBECOM) : Proceedings IEEE GLOBECOM 2017 IEEE GLOBECOM 2017, Dec 2017, Singapore, Singapore. pp.1-7 GLOBECOM |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|