IA-based hybrid beamforming design in MIMO interference channel

Ji Ho Lee, Myeong Jin Kim, Young-Chai Ko

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

    5 Citations (Scopus)

    Abstract

    In this paper, we develop a hybrid beamforming design over multiple input multiple output (MIMO) interference channels. Since the performance of MIMO interference channels depends on the desired channel and the leakage of interference signals, the proposed hybrid beamforming design first selects radio frequency (RF) precoders/combiners and optimizes the corresponding baseband precoders/combiners to maximize the rate over the desired channel by adopting the concept of orthogonal matching pursuit (OMP). Then, by using interference alignment (IA), we modify the baseband precoders/combiners to suppress the interference. From simulation results, we demonstrate that the proposed hybrid beamforming design offers the better sum rate than the baseline scheme in signal to noise ratio (SNR) region of interest where the interference is the dominant factor to the performance while preserving the degrees of freedom (DOF).

    Original languageEnglish
    Title of host publication19th International Conference on Advanced Communications Technology
    Subtitle of host publicationOpening Era of Smart Society, ICACT 2017 - Proceeding
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages358-361
    Number of pages4
    ISBN (Electronic)9788996865094
    DOIs
    Publication statusPublished - 2017 Mar 29
    Event19th International Conference on Advanced Communications Technology, ICACT 2017 - Pyeongchang, Korea, Republic of
    Duration: 2017 Feb 192017 Feb 22

    Other

    Other19th International Conference on Advanced Communications Technology, ICACT 2017
    Country/TerritoryKorea, Republic of
    CityPyeongchang
    Period17/2/1917/2/22

    Keywords

    • Analog/RF beamforming
    • Digital/baseband beamforming
    • Hybrid beamforming
    • Interference alignment
    • Interference channel

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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