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
Cet article propose un schéma de détection cohérent qui peut réduire les erreurs d'estimation de la phase porteuse dues au bruit gaussien dans les systèmes de communication où la modulation assistée par symbole pilote est utilisée pour compenser la distorsion d'évanouissement de Rician. Cet article présente deux fonctions en plus des méthodes conventionnelles d'estimation des évanouissements utilisant l'interpolation de Wiener, etc. La première est la fonction de moyenne pondérée permettant de réduire les erreurs d'estimation de la distorsion d'évanouissement détectée par les symboles pilotes. La seconde est la fonction de moyenne mobile pour estimer les erreurs de phase qui sont résiduelles après avoir été compensées par la distorsion d'évanouissement estimée. Cet article évalue les performances du taux d'erreur sur les bits (BER) pour la méthode proposée à la fois dans le canal d'évanouissement ricien et dans le canal de bruit gaussien blanc additif (AWGN) par simulation informatique. Les résultats de simulation vérifient que les performances BER de la méthode proposée sont supérieures à celles d'une méthode conventionnelle dans le canal à évanouissement de Rican et dans le canal AWGN. Les résultats de simulation confirment également que la dégradation des performances BER de la méthode proposée n'est que de 0.1 dB dans le canal AWGN et de seulement 0.3 dB dans le canal à évanouissements riciens par rapport aux courbes théoriques même si l'on réduit le nombre de calculs en simplifiant le calcul des coefficients d'interpolation. optimisé pour l'interpolation Wiener.
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Takashi ASAHARA, Toshiharu KOJIMA, Makoto MIYAKE, "An Improved Pilot Symbol Assisted Coherent Detection Scheme for Rician Fading Channels" in IEICE TRANSACTIONS on Communications,
vol. E82-B, no. 12, pp. 2041-2048, December 1999, doi: .
Abstract: This paper proposes a coherent detection scheme that can reduce the estimation errors of the carrier phase due to Gaussian noise in communication systems where pilot symbol assisted modulation is employed to compensate for Rician fading distortion. This paper introduces two functions in addition to conventional fading estimation methods using Wiener interpolation, etc. The first is the weighted average function for reducing the estimation errors of the fading distortion detected by pilot symbols. The second is the moving average function for estimating the phase errors that are residual after being compensated for by the estimated fading distortion. This paper evaluates the bit error rate (BER) performance for the proposed method in both Rician fading channel and additive white Gaussian noise (AWGN) channel by computer simulation. Simulation results verify that the BER performance of the proposed method is superior to that of a conventional method in both Rician fading channel and AWGN channel. Simulation results also confirm that the degradation of the BER performance of the proposed method is only 0.1 dB in AWGN channel and only 0.3 dB in Rician fading channel compared with the theoretical curves even if we reduce the number of computations by simplifying the calculation of interpolation coefficients optimized for Wiener interpolation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e82-b_12_2041/_p
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@ARTICLE{e82-b_12_2041,
author={Takashi ASAHARA, Toshiharu KOJIMA, Makoto MIYAKE, },
journal={IEICE TRANSACTIONS on Communications},
title={An Improved Pilot Symbol Assisted Coherent Detection Scheme for Rician Fading Channels},
year={1999},
volume={E82-B},
number={12},
pages={2041-2048},
abstract={This paper proposes a coherent detection scheme that can reduce the estimation errors of the carrier phase due to Gaussian noise in communication systems where pilot symbol assisted modulation is employed to compensate for Rician fading distortion. This paper introduces two functions in addition to conventional fading estimation methods using Wiener interpolation, etc. The first is the weighted average function for reducing the estimation errors of the fading distortion detected by pilot symbols. The second is the moving average function for estimating the phase errors that are residual after being compensated for by the estimated fading distortion. This paper evaluates the bit error rate (BER) performance for the proposed method in both Rician fading channel and additive white Gaussian noise (AWGN) channel by computer simulation. Simulation results verify that the BER performance of the proposed method is superior to that of a conventional method in both Rician fading channel and AWGN channel. Simulation results also confirm that the degradation of the BER performance of the proposed method is only 0.1 dB in AWGN channel and only 0.3 dB in Rician fading channel compared with the theoretical curves even if we reduce the number of computations by simplifying the calculation of interpolation coefficients optimized for Wiener interpolation.},
keywords={},
doi={},
ISSN={},
month={December},}
Copier
TY - JOUR
TI - An Improved Pilot Symbol Assisted Coherent Detection Scheme for Rician Fading Channels
T2 - IEICE TRANSACTIONS on Communications
SP - 2041
EP - 2048
AU - Takashi ASAHARA
AU - Toshiharu KOJIMA
AU - Makoto MIYAKE
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E82-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1999
AB - This paper proposes a coherent detection scheme that can reduce the estimation errors of the carrier phase due to Gaussian noise in communication systems where pilot symbol assisted modulation is employed to compensate for Rician fading distortion. This paper introduces two functions in addition to conventional fading estimation methods using Wiener interpolation, etc. The first is the weighted average function for reducing the estimation errors of the fading distortion detected by pilot symbols. The second is the moving average function for estimating the phase errors that are residual after being compensated for by the estimated fading distortion. This paper evaluates the bit error rate (BER) performance for the proposed method in both Rician fading channel and additive white Gaussian noise (AWGN) channel by computer simulation. Simulation results verify that the BER performance of the proposed method is superior to that of a conventional method in both Rician fading channel and AWGN channel. Simulation results also confirm that the degradation of the BER performance of the proposed method is only 0.1 dB in AWGN channel and only 0.3 dB in Rician fading channel compared with the theoretical curves even if we reduce the number of computations by simplifying the calculation of interpolation coefficients optimized for Wiener interpolation.
ER -