Multi component carrier, sub-band DPD and GNURadio implementation

Chance Tarver, Mahmoud Abdelaziz, Lauri Anttila, Joseph R. Cavallaro

    Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


    Digital predistortion (DPD) is an effective way of mitigating spurious emission violations without the need of a significant backoff in the transmitter, thus providing better power efficiency and network coverage. In this paper, the IM3 subband DPD, proposed earlier by the authors, is extended to more than two component carriers (CCs) through a sequential learning solution. The DPD learning is iterated over each spurious emission generated by each pair and trio of CCs. We train and apply the DPD coefficients for the intermodulation distortion (IMD) products until a satisfactory performance is achieved. The algorithm is tested in simulations using MATLAB and in a novel, real-time implementation on a CPU via a software version of the algorithm using GNURadio.

    Original languageEnglish
    Title of host publicationProceedings of 2017 IEEE International Symposium on Circuits and Systems
    ISBN (Electronic)9781467368520
    Publication statusPublished - 25 Sept 2017
    Publication typeA4 Article in conference proceedings
    EventIEEE International Symposium on Circuits and Systems -
    Duration: 1 Jan 1900 → …

    Publication series

    ISSN (Print)2379-447X


    ConferenceIEEE International Symposium on Circuits and Systems
    Period1/01/00 → …


    • Adaptive filters
    • carrier aggregation
    • digital pre-distortion
    • GNURadio
    • nonlinear distortion
    • power amplifier
    • software-defined radio
    • spectrally-agile radio
    • spurious emission

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering


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