Blind Channel Estimation for QAM-OFDM Systems

DOI 2 Citations 7 References

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Other Title
  • QAM-OFDMシステムのブラインドチャンネル推定

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Description

In the present paper, a blind method is proposed to estimate QAM-OFDM channels of which transmitting and receiving stations are in line-of-sight, under the assumptions: i) the absolute value of phase rotation is less than π/2 at all sub-channels, and ii) for at least one sub-channel among them, it is less than π/4. From several simulation results for 50 sub-carriers with 16 QAM using 2048 OFDM blocks, it is confirmed that, when the SNR (Signal-to-Noise Ratio) in baseband region is over 20[dB], the QAM-OFDM channel is estimated at high precision by the proposed method and the restored symbols resulting from the channel estimates give the bit-error-rate about 10-3 or less at SNR≥20[dB].

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Details 詳細情報について

  • CRID
    1390282679439925888
  • NII Article ID
    130004849315
  • DOI
    10.2299/jsp.18.77
  • ISSN
    18801013
    13426230
  • Text Lang
    ja
  • Article Type
    journal article
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
    • KAKEN
  • Abstract License Flag
    Disallowed

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