Reference receiver enabled digital cancellation of nonlinear out-of-band blocker distortion in wideband receivers

Jaakko Marttila, Markus Allen, Marko Kosunen, Kari Stadius, Jussi Ryynänen, Mikko Valkama

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

    Abstract

    This paper proposes digital cancellation of nonlinear distortion originating from out-of-band blocking carriers and induced by the analog front-end nonlinearities in direct-conversion receivers (RXs). The cancellation is enabled by employing an additional reference RX for capturing these blockers. In addition, cancellation of mirror-frequency interference is targeted. The feed-forward cancellation of nonlinear distortion is blindly adaptive without any a priori information of the received signal or the nonlinearity characteristics of the RX. The performance of this approach is demonstrated with laboratory RF measurements using state-of-the-art base-station hardware. With the distortion cancellation, blocker tolerance of the RX is improved by 7-8 dB.
    Original languageEnglish
    Title of host publicationProceedings of IEEE Global Conference on Signal and Information Processing
    Place of PublicationWashington, DC
    PublisherIEEE
    Pages684-688
    ISBN (Electronic)978-1-5090-4544-0
    DOIs
    Publication statusPublished - 7 Dec 2016
    Publication typeA4 Article in a conference publication
    EventIEEE Global Conference on Signal and Information Processing -
    Duration: 1 Jan 1900 → …

    Conference

    ConferenceIEEE Global Conference on Signal and Information Processing
    Period1/01/00 → …

    Publication forum classification

    • Publication forum level 1

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