Frequency-domain iterative block DFE using erasure zones and improved parameter estimation

Jian Yu Pan, Kuei Chiang Lai, Yi Ting Li, Szu Lin Su

研究成果: Article同行評審

摘要

Iterative block decision feedback equalization with hard-decision feedback (HD-IBDFE) was proposed for single-carrier transmission with frequency-domain equalization (SC-FDE). The detection performance hinges upon not only error propagation, but also the accuracy of estimating the parameters used to re-compute the equalizer coefficients at each iteration. In this paper, we use the erasure zone (EZ) to de-emphasize the feedback values when the hard decisions are not reliable. EZ use also enables a more accurate, and yet computationally more efficient, parameter estimation method than HD-IBDFE. We show that the resulting equalizer coefficients share the same mathematical form as that of the HD-IBDFE, thereby preserving the merit of not requiring matrix inverse operations in calculating the equalizer coefficients. Simulations show that, by using the EZ and the proposed parameter estimation method, a significant performance improvement over the conventional HD-IBDFE can be achieved, but with lower complexity.

原文English
頁(從 - 到)1159-1171
頁數13
期刊IEICE Transactions on Communications
E104B
發行號9
DOIs
出版狀態Published - 2021

All Science Journal Classification (ASJC) codes

  • 軟體
  • 電腦網路與通信
  • 電氣與電子工程

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