Improved Decision-Feedback Detection Schemes for STBC over Time-Selective Fading Channels

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概要

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• This letter proposes two efficient decision-feedback (DF) detection schemes for space-time block code (STBC) over time-selective fading channels. The existing DF detection causes error propagation when the first symbol is not detected correctly. However, the proposed detection schemes provide two candidates according to a channel gain or an average log-likelihood ratio (LLR) based selection rule and choose a better candidate for the first symbol. Simulation results show that the proposed detection schemes reduce error propagation and yield significant signal-to-noise ratio (SNR) gain with moderate complexity, compared to the existing DF detection scheme.

• （社）電子情報通信学会の論文
• 2008-09-01

著者

• KIM Hyounkuk

  Information and Communications University (ICU)

• PARK Hyuncheol

  Information and Communications University (ICU)

• Kim Hyounkuk

  Information And Communications Univ. (icu) Daejeon Kor

• Park Hyuncheol

  Information And Communications Univ. (icu) Daejeon Kor

• SHIN Cheolkyu

  Information and Communications University (ICU)

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• Improved Decision-Feedback Detection Schemes for STBC over Time-Selective Fading Channels
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