IEICE TRANSACTIONS on Communications
Frequency-Domain Iterative Block DFE Using Erasure Zones and Improved Parameter Estimation
Summary :
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.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E104-B No.9 pp.1159-1171
- Publication Date
- 2021/09/01
- Publicized
- 2021/03/22
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2020EBP3111
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Jian-Yu PAN
the Tainan City Police Department
Kuei-Chiang LAI
National Cheng Kung University
Yi-Ting LI
the HTC Corporation
Szu-Lin SU
National Cheng Kung University
Keyword
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Jian-Yu PAN, Kuei-Chiang LAI, Yi-Ting LI, Szu-Lin SU, "Frequency-Domain Iterative Block DFE Using Erasure Zones and Improved Parameter Estimation" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 9, pp. 1159-1171, September 2021, doi: 10.1587/transcom.2020EBP3111.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2020EBP3111/_p
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@ARTICLE{e104-b_9_1159,
author={Jian-Yu PAN, Kuei-Chiang LAI, Yi-Ting LI, Szu-Lin SU, },
journal={IEICE TRANSACTIONS on Communications},
title={Frequency-Domain Iterative Block DFE Using Erasure Zones and Improved Parameter Estimation},
year={2021},
volume={E104-B},
number={9},
pages={1159-1171},
abstract={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.},
keywords={},
doi={10.1587/transcom.2020EBP3111},
ISSN={1745-1345},
month={September},}
Copy
TY - JOUR
TI - Frequency-Domain Iterative Block DFE Using Erasure Zones and Improved Parameter Estimation
T2 - IEICE TRANSACTIONS on Communications
SP - 1159
EP - 1171
AU - Jian-Yu PAN
AU - Kuei-Chiang LAI
AU - Yi-Ting LI
AU - Szu-Lin SU
PY - 2021
DO - 10.1587/transcom.2020EBP3111
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2021
AB - 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.
ER -
English
