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
Cet article propose un nouveau schéma de transmission radio mobile parallèle à grande vitesse utilisant des codes à décalage cyclique générés à partir d'une séquence M modifiée. La séquence M modifiée est polarisée avec un courant continu constant (CC) sur une séquence M et les puces de garde sont insérées avant et après cette séquence M polarisée. Le système proposé présente les caractéristiques suivantes : i) L'orthogonalité des codes est conservée non seulement entre les ondes directes de chaque canal parallèle mais également entre les ondes directes et retardées au sein des puces de garde ; ii) Il est possible de réduire le nombre de types de codes attribués à un utilisateur ; et iii) Il est facile de récupérer à la fois les timings du code et des puces. De plus, dans cet article, les performances du système proposé ont été évaluées en termes de taux d'erreur sur les bits (BER) sous bruit gaussien blanc additif (AWGN), d'évanouissement de Rayleigh non sélectif à un trajet et de canaux d'évanouissement de Rayleigh à double pointe. En conséquence, le schéma de transmission proposé peut transmettre plusieurs Mbps dans un canal à évanouissement Rayleigh à double pointe et à grande vitesse avec une meilleure qualité par rapport à un schéma de transmission CDM multicode classique basé sur des séquences M.
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Hiroshi HARADA, "Performance Analysis of a New Multi-Code High-Speed Mobile Radio Transmission Scheme Using Cyclic Modified M-Sequence" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 9, pp. 2056-2067, September 2000, doi: .
Abstract: This paper proposes a new parallel high speed mobile radio transmission scheme using cyclic-shifted-codes generated from a modified M-sequence. The modified M-sequence is biased with constant direct current (dc) on an M-sequence and is inserted the guard chips before and after this biased M-sequence. The proposed system has the following features: i) Orthogonality of the codes is kept not only between direct waves of each parallel channels but also between direct and delayed waves within the guard chips; ii) It is possible to reduce the number of kinds of codes allocated to one user; and iii) It is easy to recover both code and chip timings. In this paper, moreover, the performance of the proposed system was evaluated in terms of bit error rate (BER) under additive white Gaussian noise (AWGN), non-selective one path Rayleigh fading and double-spike Rayleigh fading channels. As a result, the proposed transmission scheme can transmit several Mbps in a high-speed double-spike Rayleigh fading channel with better quality in comparison with a conventional multicode CDM transmission scheme based on M-sequences.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_9_2056/_p
Copier
@ARTICLE{e83-b_9_2056,
author={Hiroshi HARADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Analysis of a New Multi-Code High-Speed Mobile Radio Transmission Scheme Using Cyclic Modified M-Sequence},
year={2000},
volume={E83-B},
number={9},
pages={2056-2067},
abstract={This paper proposes a new parallel high speed mobile radio transmission scheme using cyclic-shifted-codes generated from a modified M-sequence. The modified M-sequence is biased with constant direct current (dc) on an M-sequence and is inserted the guard chips before and after this biased M-sequence. The proposed system has the following features: i) Orthogonality of the codes is kept not only between direct waves of each parallel channels but also between direct and delayed waves within the guard chips; ii) It is possible to reduce the number of kinds of codes allocated to one user; and iii) It is easy to recover both code and chip timings. In this paper, moreover, the performance of the proposed system was evaluated in terms of bit error rate (BER) under additive white Gaussian noise (AWGN), non-selective one path Rayleigh fading and double-spike Rayleigh fading channels. As a result, the proposed transmission scheme can transmit several Mbps in a high-speed double-spike Rayleigh fading channel with better quality in comparison with a conventional multicode CDM transmission scheme based on M-sequences.},
keywords={},
doi={},
ISSN={},
month={September},}
Copier
TY - JOUR
TI - Performance Analysis of a New Multi-Code High-Speed Mobile Radio Transmission Scheme Using Cyclic Modified M-Sequence
T2 - IEICE TRANSACTIONS on Communications
SP - 2056
EP - 2067
AU - Hiroshi HARADA
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2000
AB - This paper proposes a new parallel high speed mobile radio transmission scheme using cyclic-shifted-codes generated from a modified M-sequence. The modified M-sequence is biased with constant direct current (dc) on an M-sequence and is inserted the guard chips before and after this biased M-sequence. The proposed system has the following features: i) Orthogonality of the codes is kept not only between direct waves of each parallel channels but also between direct and delayed waves within the guard chips; ii) It is possible to reduce the number of kinds of codes allocated to one user; and iii) It is easy to recover both code and chip timings. In this paper, moreover, the performance of the proposed system was evaluated in terms of bit error rate (BER) under additive white Gaussian noise (AWGN), non-selective one path Rayleigh fading and double-spike Rayleigh fading channels. As a result, the proposed transmission scheme can transmit several Mbps in a high-speed double-spike Rayleigh fading channel with better quality in comparison with a conventional multicode CDM transmission scheme based on M-sequences.
ER -