Multicarrier digital pre-distortion/ equalization techniques for non-linear satellite channels

Piazza, Roberto; Shankar, Bhavani; Zenteno, Efrain; Rönnow, Daniel; Grotz, Joël; Zimmer, Frank; M, Grasslin; Heckmann, Frieder; Cioni, Stefano

doi:10.2514/6.2012-15156

Cited by 17 publications

(47 citation statements)

References 12 publications

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“…Inter-symbol Interference is generated by the inherent memory combined with the non-linear characteristic of the amplifier. However, in our scenario, the dominant interference effects are the non-linear ACI excited by the intermodulation products generated by the multicarrier joint amplification: these effects are analysed 9 and their manifestations illustrated 1 .…”

Section: B Multicarrier Non-linear Satellite Channel Characteristicmentioning

confidence: 99%

“…where u p (n − k ) is the − th symbol of the th carrier and {h m (d) (k)} are the coefficients relative to the polynomial degree d. Parameters estimation is based on sporadic feedback provide by some dedicated receiver to the transmitting gateway 1 . Single carrier symbol rate equalization is implemented at the UT applying MMSE linear of linear symbol rate filtering 1 ,…”

Section: Baseline On-ground Mitigation Techniquesmentioning

confidence: 99%

“…Multicarrier data predistortion is considered at the transmitting gateway in combination with single carrier symbol rate equalization at the receiving user terminals 1 . …”

Section: Baseline On-ground Mitigation Techniquesmentioning

confidence: 99%

“…Single carrier symbol rate equalization is implemented at the UT applying MMSE linear of linear symbol rate filtering 1 ,…”

Section: Baseline On-ground Mitigation Techniquesmentioning

confidence: 99%

“…As the amplifier is operated in its high efficiency region, the non-linear distortion effects increase requiring a natural trade-off between power and spectral efficiencies. Non-linear distortions become significant when multilevel modulation schemes are employed or when inter-modulation products (IMD) are excited in the multicarrier operation mode 1 . In fact, the application of multilevel modulation schemes or multicarrier signalling increases the signal peak to average power ration (PAPR) to which the performance of HPA is very sensitive.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of Fractionally Spaced Equalization in Non-linear Multicarrier Satellite Channels

Piazza

Shankar

Berheide³

et al. 2014

32nd AIAA International Communications Satellite Systems Conference

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Section: B Multicarrier Non-linear Satellite Channel Characteristicmentioning

confidence: 99%

Section: Baseline On-ground Mitigation Techniquesmentioning

confidence: 99%

“…Multicarrier data predistortion is considered at the transmitting gateway in combination with single carrier symbol rate equalization at the receiving user terminals 1 . …”

Section: Baseline On-ground Mitigation Techniquesmentioning

confidence: 99%

“…Single carrier symbol rate equalization is implemented at the UT applying MMSE linear of linear symbol rate filtering 1 ,…”

Section: Baseline On-ground Mitigation Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance Analysis of Fractionally Spaced Equalization in Non-linear Multicarrier Satellite Channels

Piazza

Shankar

Berheide³

et al. 2014

32nd AIAA International Communications Satellite Systems Conference

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Bandwidth-constrained digital pre-compensation technique for multi-carrier satellite communications

Kelly

Allegue‐Martínez

Arapoglou

et al. 2015

Int. J. Satell. Commun. Network.

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SUMMARYA wide variety of imperfections impact end-to-end performance in multiple-carrier per transponder transparent satellite links. Analysis of the link architecture leads to the identification of the sources and characteristics of distortion experienced by a typical multi-carrier signal. This paper introduces a new remote pre-compensation technique that takes this analysis into account to compensate for the specific distortion that occurs in the satellite channel. The proposed technique succeeds in compensating both linear and nonlinear channel distortions while overcoming the numerous challenges associated with remote waveform predistortion. Excellent linearisation performance has been observed across a wide range of link scenarios, even for high power amplifiers already linearised in the analogue domain. In addition, through an extensive end-to-end simulation campaign and a field programmable gate array implementation of the new algorithms, feasibility of the technique has been verified.

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Performance improvement techniques for the DVB‐RCS2 return link air interface

Mathiopoulos

Candreva

Awoseyila

et al. 2015

Satell Commun Network

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Summary This paper presents performance improvement techniques for the second‐generation digital video broadcast return channel via satellite air interface, which can be used for supporting future demands for Tbit/s traffic requirements. In particular, we have investigated minimum‐shift keying (MSK) type of continuous phase modulation (CPM) waveforms by considering both single‐carrier and multi‐carrier transmission and single‐amplitude and multi‐amplitude signals, which improve the spectral efficiency. In addition, we consider frame timing and synchronization techniques, which make synchronization more accurate and robust. Our research has shown that the MSK single‐carrier frequency‐division multiple access (SC‐FDMA) outperforms the quadrature phase‐shift keying SC‐FDMA in terms of resilience to distortion with the performance gap increasing when the amplifier shows a milder distortion. The performance of a multi‐amplitude CPM scheme, based upon the superposition of two single‐amplitude MSK signals at the radio frequencies level, is also investigated. In comparison with other equivalent linear modulation schemes, performance evaluation results have been shown that the proposed multi‐amplitude CPM scheme significantly improves the spectral efficiency in the presence of adjacent channel interference. Finally, we have proposed a viable and efficient methodology, which enables reliable and accurate timing and frequency synchronization for the SC‐FDMA satellite return link. This involves a combination of global positioning system (GPS)‐based pre‐compensation of differential timing between user terminals, preamble detection in an integrated random access channel, and user channel frequency estimation based on repetitive symbols in the time domain. Copyright © 2015 John Wiley & Sons, Ltd.

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Multicarrier digital pre-distortion/ equalization techniques for non-linear satellite channels

Cited by 17 publications

References 12 publications

Performance Analysis of Fractionally Spaced Equalization in Non-linear Multicarrier Satellite Channels

Performance Analysis of Fractionally Spaced Equalization in Non-linear Multicarrier Satellite Channels

Bandwidth-constrained digital pre-compensation technique for multi-carrier satellite communications

Performance improvement techniques for the DVB‐RCS2 return link air interface

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