Dedicated beam-based channel training technique for millimeter wave communications with high mobility

Jisu Bae, Sun Hong Lim, Jin Hyeok Yoo, Jun Won Choi, Byonghyo Shim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)

    Abstract

    In this paper, we propose a new beam training framework to cope with mobility scenarios in millimeter wave communications. When a position of the mobile changes, the base-station needs to perform beam training frequently to track the time-varying channel, which leads to significant training overhead in radio resources. In order to alleviate this problem, we propose a “dedicated beam training” which serves only users under high mobility. Combined with conventional common beam training, the proposed dedicated beam training can allow the high mobility users to acquire channels with a small number of training beams exploiting the location information of the target user. The optimal selection of the training beams is formulated such that the lower bound of the angle of departure (AoD) estimate is minimized over the beam codebook indices given the estimate of the previous AoD state. Our numerical evaluation demonstrates that the proposed beam training scheme can maintain good channel estimation performance with less training overhead than the conventional beam training protocol.

    Original languageEnglish
    Title of host publication2018 26th European Signal Processing Conference, EUSIPCO 2018
    PublisherEuropean Signal Processing Conference, EUSIPCO
    Pages1830-1834
    Number of pages5
    ISBN (Electronic)9789082797015
    DOIs
    Publication statusPublished - 2018 Nov 29
    Event26th European Signal Processing Conference, EUSIPCO 2018 - Rome, Italy
    Duration: 2018 Sept 32018 Sept 7

    Publication series

    NameEuropean Signal Processing Conference
    Volume2018-September
    ISSN (Print)2219-5491

    Other

    Other26th European Signal Processing Conference, EUSIPCO 2018
    Country/TerritoryItaly
    CityRome
    Period18/9/318/9/7

    Bibliographical note

    Funding Information:
    VI. ACKNOWLEDGEMENT This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2017R1D1A1A09000602) and Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-IT-1601-09.

    Funding Information:
    This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (NRF-2017R1D1A1A09000602) and Samsung Research Funding & Incubation Center of Samsung Electronics under Project Number SRFC-IT-1601-09.

    Publisher Copyright:
    © EURASIP 2018.

    ASJC Scopus subject areas

    • Signal Processing
    • Electrical and Electronic Engineering

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