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Multicarrier Digital Pre-distortion/ EqualizationTechniques for Non-linear Satellite Channels
University of Luxembourg.
University of Luxembourg.
KTH, School of Electrical Engineering (EES), Signal Processing. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. University of Gavle.ORCID iD: 0000-0001-8460-6509
University of Gavle.
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2012 (English)In: Proc. 30th AIAA Intern.Commun. Satellite Syst. Conference, 2012, 1-5 p.Conference paper, Published paper (Refereed)
Abstract [en]

Two key advances are envisaged for future missions: (a) spectrally efficienttransmission to meet the increasing demand and (b) sharing of satellite capacityamong different links to meet power/mass requirements. Joint amplification ofmultiple-carrier DVB-S2 signals using a single High-Power Amplifier (HPA) is aparticular application of satellite resource sharing. However, effects specific to sucha scenario that degrade power and spectral efficiencies include (a) an increasedAdjacent Channel Interference caused by non-linear characteristic of the HPA and(b) increased peak to average power ratio. The paper studies signal processingtechniques – digital pre-distortion (DPD) at the gateway and equalization (EQ) atthe User Terminal – to mitigate the non-linear effects and improve power as well asspectral efficiencies. While the algorithms for DPD and EQ are described inliterature, their use in multi-carrier scenario is novel and poses new challenges thatare investigated in the paper.

Place, publisher, year, edition, pages
2012. 1-5 p.
Keyword [en]
satellite, digital predistortion, nonlinear channel
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-136260OAI: oai:DiVA.org:kth-136260DiVA: diva2:675673
Conference
30th AIAA Intern.Commun. Satellite Syst. Conference,24 - 27 September 2012, Ottawa, Ontario
Note

QC 20131218

Available from: 2013-12-04 Created: 2013-12-04 Last updated: 2013-12-18Bibliographically approved

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30thAIAA(4641 kB)254 downloads
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