Accurate Channel Estimation Method using Decision Feedback Data Symbols after Soft-decision Turbo Decoding in QRM-MLD for OFDM MIMO Multiplexing

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Other Title
  • OFDM MIMO多重のQRM-MLD信号分離法におけるターボ復号後判定帰還型高精度チャネル推定法(モバイルとホームネットワーク連携, 移動通信ワークショップ)

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Description

This paper proposes accurate channel estimation method using decision feedback data symbols after soft-decision Turbo decoding in maximum likelihood detection employing QR decomposition and M-algorithm (QRM-MLD) for OFDM MIMO multiplexing. Computer simulation results elucidate that the required average received signal energy per bit-to-noise power spectrum density ratio (E_b/N_0) using proposed method at the average packet error rate of 10^<-2> is reduced by approximately 1.5 dB compared to that with conventional channel estimation using only orthogonal pilot symbols in 4-by-4 MIMO multiplexing employing QPSK modulation and Turbo coding with the channel coding rate of 3/4 (12-path Rayleigh fading channel, root mean squared delay spread of 0.26μsec, maximum Doppler frequency of 10 Hz).

Journal

  • IEICE technical report. Microwaves

    IEICE technical report. Microwaves 104 (685), 93-98, 2005-02-24

    The Institute of Electronics, Information and Communication Engineers

Keywords

Details 詳細情報について

  • CRID
    1574231877099980800
  • NII Article ID
    110003206725
  • NII Book ID
    AN10013185
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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