Data predistortion for multicarrier satellite channels using orthogonal memory polynomials
2013 (English)In: IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, 2013, 689-693 p.Conference paper (Refereed)
Sharing the on-board high power amplifier among different uplinked carriers (links) is attractive since it provides for economical and sustainable satellite missions. However, the non-linear characteristic of the satellite amplifier introduces intermodulation products leading to Adjacent Channel Interference (ACI), thereby degrading performance, more so for the spectrally efficient modulations. Towards supporting higher order modulations, this work proposes a novel distortion mitigation technique at the transmitter (predistortion) based on orthogonal memory polynomials and highlights its salient features: performance improvement, scalability and low complexity.
Place, publisher, year, edition, pages
2013. 689-693 p.
Adjacent channel interference, Data predistortion, High power amplifier, Higher order modulation, Inter-modulation products, Mitigation techniques, Nonlinear characteristics, Satellite amplifiers
IdentifiersURN: urn:nbn:se:kth:diva-139014DOI: 10.1109/SPAWC.2013.6612138ScopusID: 2-s2.0-84885756028ISBN: 9781467355773OAI: oai:DiVA.org:kth-139014DiVA: diva2:682117
2013 IEEE 14th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2013; Darmstadt; Germany; 16 June 2013 through 19 June 2013
QC 201402042013-12-232013-12-232014-02-04Bibliographically approved