Multiuser MISO broadcast channels with imperfect CSI: Discrete signaling without SIC

Min Qiu, Yu Chih Huang, Jinhong Yuan

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

    1 Scopus citations

    Abstract

    In this paper, we study the communication problem of multiuser multiple-input single-output (MISO) broadcast channels with imperfect channel state information (CSI) at the transmitter. Zero-forcing precoding based on the imperfect CSI is adopted so that the channel can be transformed into a Gaussian interference channel. We consider a practical setting where only discrete input signalings are employed and all the receivers adopt single-user treating-interference-as-noise (TIN) decoding, as opposed to rate-splitting and successive interference cancellation. Under this setting, we first use the deterministic model to approximate the original channel model and develop communication schemes to achieve the entire capacity region. By translating the results of the deterministic model back to the MISO model, we develop a systematic way to design discrete input signalings for the original problem. Our simulation results show that our scheme is capable of approaching the (outer bound of) capacity region of the Gaussian interference channel.

    Original languageEnglish
    Title of host publication2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781728109626
    DOIs
    StatePublished - Dec 2019
    Event2019 IEEE Global Communications Conference, GLOBECOM 2019 - Waikoloa, United States
    Duration: 9 Dec 201913 Dec 2019

    Publication series

    Name2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings

    Conference

    Conference2019 IEEE Global Communications Conference, GLOBECOM 2019
    Country/TerritoryUnited States
    CityWaikoloa
    Period9/12/1913/12/19

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