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Data-Aided Doppler Compensation for High-Speed Railway Communications over mmWave Bands

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Názov: Data-Aided Doppler Compensation for High-Speed Railway Communications over mmWave Bands
Autori: Gong, Zijun, Li, Cheng, Jiang, Fan, 1987, Win, Moe
Zdroj: IEEE Transactions on Wireless Communications. 20(1):520-534
Predmety: data-aided channel estimation, high-speed railway, Channel tracking, massive MIMO, millimeter wave, angle domain processing
Popis: IEEE Millimeter wave communications show great potentials in many applications, one of which is the high-speed railway (HSR) communication system. However, a major challenge is the Doppler effect caused by the relative-movement between the train and the base station (BS), which leads to fast channel variation. To compensate for the Doppler shift, an accurate channel model is indispensable, and the far-field channel model is generally employed, which assumes that the dimensions of the antenna arrays are negligible compared to the distance between transmitter and receiver. This model is widely used in Cellular systems, but the underlining assumption is not always true for railway communication systems. In this paper, the modeling of the Doppler effect for millimeter wave in HSR communications is conducted, and data-aided Doppler estimation and compensation algorithms are designed based on the new model. We show that the conventional far-field channel model is based on the first-order Taylor expansion of the actually channel, and the second-order component cannot be ignored for HSR communications. Extensive simulations are conducted to verify the validity of the new model and the effectiveness of the proposed algorithms.
Prístupová URL adresa: https://research.chalmers.se/publication/519624
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Data-Aided Doppler Compensation for High-Speed Railway Communications over mmWave Bands
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Gong%2C+Zijun%22">Gong, Zijun</searchLink><br /><searchLink fieldCode="AR" term="%22Li%2C+Cheng%22">Li, Cheng</searchLink><br /><searchLink fieldCode="AR" term="%22Jiang%2C+Fan%22">Jiang, Fan</searchLink>, 1987<br /><searchLink fieldCode="AR" term="%22Win%2C+Moe%22">Win, Moe</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <i>IEEE Transactions on Wireless Communications</i>. 20(1):520-534
– Name: Subject
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  Group: Su
  Data: <searchLink fieldCode="DE" term="%22data-aided+channel+estimation%22">data-aided channel estimation</searchLink><br /><searchLink fieldCode="DE" term="%22high-speed+railway%22">high-speed railway</searchLink><br /><searchLink fieldCode="DE" term="%22Channel+tracking%22">Channel tracking</searchLink><br /><searchLink fieldCode="DE" term="%22massive+MIMO%22">massive MIMO</searchLink><br /><searchLink fieldCode="DE" term="%22millimeter+wave%22">millimeter wave</searchLink><br /><searchLink fieldCode="DE" term="%22angle+domain+processing%22">angle domain processing</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: IEEE Millimeter wave communications show great potentials in many applications, one of which is the high-speed railway (HSR) communication system. However, a major challenge is the Doppler effect caused by the relative-movement between the train and the base station (BS), which leads to fast channel variation. To compensate for the Doppler shift, an accurate channel model is indispensable, and the far-field channel model is generally employed, which assumes that the dimensions of the antenna arrays are negligible compared to the distance between transmitter and receiver. This model is widely used in Cellular systems, but the underlining assumption is not always true for railway communication systems. In this paper, the modeling of the Doppler effect for millimeter wave in HSR communications is conducted, and data-aided Doppler estimation and compensation algorithms are designed based on the new model. We show that the conventional far-field channel model is based on the first-order Taylor expansion of the actually channel, and the second-order component cannot be ignored for HSR communications. Extensive simulations are conducted to verify the validity of the new model and the effectiveness of the proposed algorithms.
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1109/TWC.2020.3026158
    Languages:
      – Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 520
    Subjects:
      – SubjectFull: data-aided channel estimation
        Type: general
      – SubjectFull: high-speed railway
        Type: general
      – SubjectFull: Channel tracking
        Type: general
      – SubjectFull: massive MIMO
        Type: general
      – SubjectFull: millimeter wave
        Type: general
      – SubjectFull: angle domain processing
        Type: general
    Titles:
      – TitleFull: Data-Aided Doppler Compensation for High-Speed Railway Communications over mmWave Bands
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            NameFull: Gong, Zijun
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            NameFull: Li, Cheng
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            NameFull: Jiang, Fan
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            NameFull: Win, Moe
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          Dates:
            – D: 01
              M: 01
              Type: published
              Y: 2021
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              Value: 20
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          Titles:
            – TitleFull: IEEE Transactions on Wireless Communications
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