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
Sebagai kaedah untuk merealisasikan komunikasi berkelajuan tinggi dalam rangkaian rumah, teknik komunikasi talian kuasa (PLC) diketahui. Masalah PLC ialah sinaran kebocoran mengganggu sistem sedia ada. Apabila OFDM digunakan dalam sistem PLC, sinaran kebocoran tidak dikurangkan secukupnya, walaupun subpembawa yang sepadan dengan jalur frekuensi sistem sedia ada tidak pernah digunakan, kerana isyarat tidak terhad jalur. Untuk menyelesaikan masalah ini, setiap subpembawa mestilah terhad jalur. Dalam kertas kerja ini, kami menggunakan transmisi berbilang pembawa berasaskan OQAM (OQAM-MCT) pada sistem PLC berkelajuan tinggi, di mana setiap subpembawa adalah terhad jalur secara individu. Kami juga mencadangkan jujukan simbol perintis yang sesuai untuk anggaran offset kekerapan, pengesanan masa simbol dan anggaran saluran dalam sistem OQAM-MCT. Dalam kaedah ini, jujukan isyarat perintis terdiri daripada siri berulang bagi simbol data yang sama. Dengan kaedah ini, jujukan perintis lebih kurang menjadi setara dengan jujukan OFDM dan oleh itu kaedah bantuan perintis sedia ada untuk OFDM juga boleh digunakan untuk sistem OQAM-MCT. Keputusan simulasi komputer menunjukkan bahawa sistem OQAM-MCT mencapai prestasi kadar penghantaran yang baik dan sinaran luar jalur yang rendah dalam saluran PLC. Ia juga menunjukkan bahawa jujukan pandu yang dicadangkan meningkatkan anggaran offset frekuensi, pengesanan masa simbol dan prestasi anggaran saluran berbanding dengan kes menggunakan jujukan pseudo-bunyi.
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Salinan
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
Salinan
@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},}
Salinan
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 -