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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
En tant que procédé permettant de réaliser une communication à haut débit dans le réseau domestique, la technique de communication par courant porteur en ligne (PLC) est connue. Un problème du PLC est que le rayonnement de fuite interfère avec les systèmes existants. Lorsque l'OFDM est utilisé dans un système CPL, le rayonnement de fuite n'est pas suffisamment réduit, même si les sous-porteuses correspondant à la bande de fréquence du système existant ne sont jamais utilisées, car le signal n'est pas strictement limité en bande. Pour résoudre ce problème, chaque sous-porteuse doit être limitée en bande. Dans cet article, nous appliquons la transmission multiporteuse basée sur l'OQAM (OQAM-MCT) à un système PLC à grande vitesse, où chaque sous-porteuse est individuellement limitée en bande. Nous proposons également une séquence de symboles pilotes adaptée à l'estimation du décalage de fréquence, à la détection du timing des symboles et à l'estimation du canal dans le système OQAM-MCT. Dans ce procédé, la séquence de signaux pilotes consiste en une série répétée du même symbole de données. Avec cette méthode, la séquence pilote devient approximativement équivalente à la séquence OFDM et, par conséquent, les méthodes assistées par pilote existantes pour l'OFDM sont également applicables au système OQAM-MCT. Les résultats de simulation informatique montrent que le système OQAM-MCT atteint à la fois de bonnes performances en matière de taux de transmission et un faible rayonnement hors bande dans les canaux CPL. Il est également démontré que la séquence pilote proposée améliore les performances d'estimation du décalage de fréquence, de détection du timing des symboles et d'estimation de canal par rapport au cas d'utilisation d'une séquence de pseudo-bruit.
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Naohiro KAWABATA, Hisao KOGA, Osamu MUTA, Yoshihiko AKAIWA, "A High-Speed Power-Line Communication System with Band-Limited OQAM Based Multi-Carrier Transmission" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 2, pp. 473-482, February 2009, doi: 10.1587/transcom.E92.B.473.
Abstract: As a method to realize a high-speed communication in the home network, the power-line communication (PLC) technique is known. A problem of PLC is that leakage radiation interferes with existing systems. When OFDM is used in a PLC system, the leakage radiation is not sufficiently reduced, even if the subcarriers corresponding to the frequency-band of the existing system are never used, because the signal is not strictly band-limited. To solve this problem, each subcarrier must be band-limited. In this paper, we apply the OQAM based multi-carrier transmission (OQAM-MCT) to a high-speed PLC system, where each subcarrier is individually band-limited. We also propose a pilot-symbol sequence suitable for frequency offset estimation, symbol-timing detection and channel estimation in the OQAM-MCT system. In this method, the pilot signal-sequence consists of a repeated series of the same data symbol. With this method, the pilot sequence approximately becomes equivalent to OFDM sequence and therefore existing pilot-assisted methods for OFDM are also applicable to OQAM-MCT system. Computer simulation results show that the OQAM-MCT system achieves both good transmission rate performance and low out-of-band radiation in PLC channels. It is also shown that the proposed pilot-sequence improves frequency offset estimation, symbol-timing detection and channel estimation performance as compared with the case of using pseudo-noise sequence.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.473/_p
Copier
@ARTICLE{e92-b_2_473,
author={Naohiro KAWABATA, Hisao KOGA, Osamu MUTA, Yoshihiko AKAIWA, },
journal={IEICE TRANSACTIONS on Communications},
title={A High-Speed Power-Line Communication System with Band-Limited OQAM Based Multi-Carrier Transmission},
year={2009},
volume={E92-B},
number={2},
pages={473-482},
abstract={As a method to realize a high-speed communication in the home network, the power-line communication (PLC) technique is known. A problem of PLC is that leakage radiation interferes with existing systems. When OFDM is used in a PLC system, the leakage radiation is not sufficiently reduced, even if the subcarriers corresponding to the frequency-band of the existing system are never used, because the signal is not strictly band-limited. To solve this problem, each subcarrier must be band-limited. In this paper, we apply the OQAM based multi-carrier transmission (OQAM-MCT) to a high-speed PLC system, where each subcarrier is individually band-limited. We also propose a pilot-symbol sequence suitable for frequency offset estimation, symbol-timing detection and channel estimation in the OQAM-MCT system. In this method, the pilot signal-sequence consists of a repeated series of the same data symbol. With this method, the pilot sequence approximately becomes equivalent to OFDM sequence and therefore existing pilot-assisted methods for OFDM are also applicable to OQAM-MCT system. Computer simulation results show that the OQAM-MCT system achieves both good transmission rate performance and low out-of-band radiation in PLC channels. It is also shown that the proposed pilot-sequence improves frequency offset estimation, symbol-timing detection and channel estimation performance as compared with the case of using pseudo-noise sequence.},
keywords={},
doi={10.1587/transcom.E92.B.473},
ISSN={1745-1345},
month={February},}
Copier
TY - JOUR
TI - A High-Speed Power-Line Communication System with Band-Limited OQAM Based Multi-Carrier Transmission
T2 - IEICE TRANSACTIONS on Communications
SP - 473
EP - 482
AU - Naohiro KAWABATA
AU - Hisao KOGA
AU - Osamu MUTA
AU - Yoshihiko AKAIWA
PY - 2009
DO - 10.1587/transcom.E92.B.473
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2009
AB - As a method to realize a high-speed communication in the home network, the power-line communication (PLC) technique is known. A problem of PLC is that leakage radiation interferes with existing systems. When OFDM is used in a PLC system, the leakage radiation is not sufficiently reduced, even if the subcarriers corresponding to the frequency-band of the existing system are never used, because the signal is not strictly band-limited. To solve this problem, each subcarrier must be band-limited. In this paper, we apply the OQAM based multi-carrier transmission (OQAM-MCT) to a high-speed PLC system, where each subcarrier is individually band-limited. We also propose a pilot-symbol sequence suitable for frequency offset estimation, symbol-timing detection and channel estimation in the OQAM-MCT system. In this method, the pilot signal-sequence consists of a repeated series of the same data symbol. With this method, the pilot sequence approximately becomes equivalent to OFDM sequence and therefore existing pilot-assisted methods for OFDM are also applicable to OQAM-MCT system. Computer simulation results show that the OQAM-MCT system achieves both good transmission rate performance and low out-of-band radiation in PLC channels. It is also shown that the proposed pilot-sequence improves frequency offset estimation, symbol-timing detection and channel estimation performance as compared with the case of using pseudo-noise sequence.
ER -