Adaptable look-up tables for linearizing high power amplifiers

Andrey Ivanov, Dmitry Lakontsev

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

    3 Citations (Scopus)

    Abstract

    This paper presents a technique of adaptive digital predistortion (DPD) with a memory effect for linearization a high power amplifier (HPA). The proposed predistortion linearizer is based on Look-Up tables (LUTs) with linear interpolation and adaptive segmentation. Simulation results with a lab signal of 40W dual-band HPA with memory effect show that the proposed technique achieves a better performance compared with a common LUT-based linear interpolation in the same chip complexity. We also propose an online segmentation method, leading to a quasi-uniform noise distribution between LUTs. Additionally, an online method of LUTs memory adaptation is presented to save chip memory resources.

    Original languageEnglish
    Title of host publication2017 3rd International Conference on Frontiers of Signal Processing, ICFSP 2017
    EditorsKrzysztof Szczypiorski
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages96-100
    Number of pages5
    ISBN (Electronic)9781538610374
    DOIs
    Publication statusPublished - 3 Nov 2017
    Event3rd International Conference on Frontiers of Signal Processing, ICFSP 2017 - Paris, France
    Duration: 6 Sep 20178 Sep 2017

    Publication series

    Name2017 3rd International Conference on Frontiers of Signal Processing, ICFSP 2017

    Conference

    Conference3rd International Conference on Frontiers of Signal Processing, ICFSP 2017
    Country/TerritoryFrance
    CityParis
    Period6/09/178/09/17

    Keywords

    • adaptive digital predistortion
    • HPA linearization
    • look-up tables
    • non-uniform segmentation

    Fingerprint

    Dive into the research topics of 'Adaptable look-up tables for linearizing high power amplifiers'. Together they form a unique fingerprint.

    Cite this