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
La modulation OFDM a attiré l'attention sur les systèmes de communication mobile de quatrième génération et les réseaux locaux sans fil à haut débit. Cependant, il présente un problème très sérieux de puissance de crête importante. Des PTS (séquences de transmission partielles) ont été proposées comme solution à ce problème. Dans PTS, les sous-porteuses OFDM sont divisées en plusieurs clusters, et la phase de chaque cluster est soumise à une rotation selon un poids complexe pour minimiser le PAPR (rapport de puissance crête à moyenne). Cependant, le poids de la rotation de phase doit être envoyé au terminal mobile en utilisant un canal d'information secondaire. Dans cet article, nous proposons deux méthodes d'estimation du poids au niveau du récepteur pour éviter la transmission du poids dans les canaux d'informations secondaires. La première méthode utilise des signaux pilotes, tandis que la seconde est une méthode d’estimation aveugle qui modifie le modèle de pondération. Nous évaluons les performances de ces méthodes par simulation informatique.
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Takeo FUJII, Masao NAKAGAWA, "Weighting Factor Estimation Methods for Partial Transmit Sequences OFDM to Reduce Peak Power" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 1, pp. 221-230, January 2002, doi: .
Abstract: OFDM modulation has attracted attention for fourth-generation mobile communication systems and high-speed wireless LANs. However, it has a very serious problem of large peak power. PTS (partial transmit sequences) has been proposed as one solution to this problem. In PTS, the OFDM subcarriers are divided into several clusters, and the phase of each cluster is rotated by a complex weight to minimize the PAPR (peak-to-average power ratio). However, the weight of the phase rotation must be sent to the mobile terminal by using a side information channel. In this paper, we propose two weight estimation methods at the receiver to avoid weight transmission in side information channels. The first method uses pilot signals, while the second is a blind estimation method that changes the weight pattern. We evaluate the performance of these methods by computer simulation.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_1_221/_p
Copier
@ARTICLE{e85-b_1_221,
author={Takeo FUJII, Masao NAKAGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Weighting Factor Estimation Methods for Partial Transmit Sequences OFDM to Reduce Peak Power},
year={2002},
volume={E85-B},
number={1},
pages={221-230},
abstract={OFDM modulation has attracted attention for fourth-generation mobile communication systems and high-speed wireless LANs. However, it has a very serious problem of large peak power. PTS (partial transmit sequences) has been proposed as one solution to this problem. In PTS, the OFDM subcarriers are divided into several clusters, and the phase of each cluster is rotated by a complex weight to minimize the PAPR (peak-to-average power ratio). However, the weight of the phase rotation must be sent to the mobile terminal by using a side information channel. In this paper, we propose two weight estimation methods at the receiver to avoid weight transmission in side information channels. The first method uses pilot signals, while the second is a blind estimation method that changes the weight pattern. We evaluate the performance of these methods by computer simulation.},
keywords={},
doi={},
ISSN={},
month={January},}
Copier
TY - JOUR
TI - Weighting Factor Estimation Methods for Partial Transmit Sequences OFDM to Reduce Peak Power
T2 - IEICE TRANSACTIONS on Communications
SP - 221
EP - 230
AU - Takeo FUJII
AU - Masao NAKAGAWA
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2002
AB - OFDM modulation has attracted attention for fourth-generation mobile communication systems and high-speed wireless LANs. However, it has a very serious problem of large peak power. PTS (partial transmit sequences) has been proposed as one solution to this problem. In PTS, the OFDM subcarriers are divided into several clusters, and the phase of each cluster is rotated by a complex weight to minimize the PAPR (peak-to-average power ratio). However, the weight of the phase rotation must be sent to the mobile terminal by using a side information channel. In this paper, we propose two weight estimation methods at the receiver to avoid weight transmission in side information channels. The first method uses pilot signals, while the second is a blind estimation method that changes the weight pattern. We evaluate the performance of these methods by computer simulation.
ER -