The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Une égalisation itérative par retour de décision par bloc avec retour de décision dure (HD-IBDFE) a été proposée pour la transmission sur une seule porteuse avec égalisation dans le domaine fréquentiel (SC-FDE). Les performances de détection dépendent non seulement de la propagation des erreurs, mais également de la précision de l'estimation des paramètres utilisés pour recalculer les coefficients d'égalisation à chaque itération. Dans cet article, nous utilisons la zone d'effacement (EZ) pour atténuer les valeurs de rétroaction lorsque les décisions difficiles ne sont pas fiables. L’utilisation d’EZ permet également une méthode d’estimation des paramètres plus précise, mais plus efficace sur le plan informatique, que le HD-IBDFE. Nous montrons que les coefficients d'égalisation résultants partagent la même forme mathématique que celle du HD-IBDFE, préservant ainsi le mérite de ne pas nécessiter d'opérations inverses de matrice dans le calcul des coefficients d'égalisation. Les simulations montrent qu'en utilisant l'EZ et la méthode d'estimation des paramètres proposée, une amélioration significative des performances par rapport au HD-IBDFE conventionnel peut être obtenue, mais avec une complexité moindre.
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
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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},}
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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 -