Hybrid-Domain Parallel Decision Feedback Equalization for Single-Carrier Block Transmission

Jiun Jie Jia, Kuei Chiang Lai, Jian Yu Pan

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

To combat intersymbol interference (ISI) in single-carrier block transmission systems, the hybrid decision feedback equalizer (HDFE) is a low-complexity, symbol-by-symbol detector that combines a frequency-domain feedforward filter and a time-domain feedback filter. To mitigate the error propagation effect of HDFE while preserving the implementation advantages of frequency-domain equalization, we propose the parallel HDFE (P-HDFE) algorithm that operates, based on the reliability of the decision variable, as an ordinary HDFE or a sequence detector that consists of multiple HDFEs running in parallel. Our study shows that, at moderate to high signal-to-noise ratios (SNRs), P-HDFE outperforms HDFE with little increase in complexity. We analyze the symbol error rate of P-HDFE at high SNRs for the case of quaternary phase-shift keying and static ISI channels, accounting for error propagation and residual ISI. Simulations demonstrate the accuracy of the analysis.

原文English
頁(從 - 到)1454-1469
頁數16
期刊IEEE Transactions on Vehicular Technology
67
發行號2
DOIs
出版狀態Published - 2018 二月

All Science Journal Classification (ASJC) codes

  • 汽車工程
  • 航空工程
  • 電氣與電子工程
  • 應用數學

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