A self-interference-cancelling receiver for in-band full-duplex wireless with low distortion under cancellation of strong TX leakage

Dirk-Jan van den Broek, Eric A.M. Klumperink, Bram Nauta

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

    49 Citations (Scopus)
    457 Downloads (Pure)

    Abstract

    In-band full-duplex (FD) wireless communication, i.e. simultaneous transmission and reception at the same frequency, in the same channel, promises up to 2x spectral efficiency, along with advantages in higher network layers [1]. the main challenge is dealing with strong in-band leakage from the transmitter to the receiver (i.e. self-interference (SI)), as TX powers are typically >100dB stronger than the weakest signal to be received, necessitating TX-RX isolation and SI cancellation. Performing this SI-cancellation solely in the digital domain, if at all possible, would require extremely clean (low-EVM) transmission and a huge dynamic range in the RX and ADC, which is currently not feasible [2]. Cancelling SI entirely in analog is not feasible either, since the SI contains delayed TX components reflected by the environment. Cancelling these requires impractically large amounts of tunable analog delay. Hence, FD-solutions proposed thus far combine SI-rejection at RF, analog BB, digital BB and cross-domain.
    Original languageEnglish
    Title of host publicationIEEE International Solid- State Circuits Conference, ISSCC 2015
    Place of PublicationPiscataway, NJ
    PublisherIEEE
    Pages344-346
    Number of pages3
    ISBN (Print)978-1-4799-6223-5
    DOIs
    Publication statusPublished - 24 Feb 2015
    EventIEEE International Solid- State Circuits Conference, ISSCC 2015 - San Francisco, United States
    Duration: 22 Feb 201526 Feb 2015

    Conference

    ConferenceIEEE International Solid- State Circuits Conference, ISSCC 2015
    Abbreviated titleISSCC
    CountryUnited States
    CitySan Francisco
    Period22/02/1526/02/15

    Keywords

    • EWI-25949
    • METIS-312561
    • IR-95677

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