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
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As técnicas de acesso múltiplo por divisão de código óptico (CDMA) fornecem serviços de transmissão de dados multiusuário em sistemas ópticos de comunicação sem fio e de fibra. Vários códigos de assinatura, como códigos de sequência principal modificados (MPSCs), MPSCs generalizados (GMPSCs) e conjuntos de sequências M pseudo-ortogonais modificados, foram propostos para sistemas CDMA ópticos síncronos. Neste artigo, é proposto um novo esquema para CDMA óptico síncrono para aumentar o número de usuários e, consequentemente, aumentar a taxa total de dados sem aumentar a taxa de chip. O esquema proposto emprega um GMPSC e um código bi-ortogonal estendido que é um código unipolar gerado a partir de um código Walsh bipolar. São mostradas comparações abrangentes entre o esquema proposto e vários esquemas convencionais. Além disso, o desempenho da taxa de erro de bit e a eficiência energética do esquema proposto são avaliados comparando com aqueles dos esquemas CDMA ópticos convencionais sob ambiente de propagação atmosférica.
Kyohei ONO
Polytechnic University
Shoichiro YAMASAKI
Polytechnic University
Shinichiro MIYAZAKI
Polytechnic University
Tomoko K. MATSUSHIMA
Polytechnic University
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Kyohei ONO, Shoichiro YAMASAKI, Shinichiro MIYAZAKI, Tomoko K. MATSUSHIMA, "Optical CDMA Scheme Using Generalized Modified Prime Sequence Codes and Extended Bi-Orthogonal Codes" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 9, pp. 1329-1338, September 2021, doi: 10.1587/transfun.2020EAP1148.
Abstract: Optical code-division multiple-access (CDMA) techniques provide multi-user data transmission services in optical wireless and fiber communication systems. Several signature codes, such as modified prime sequence codes (MPSCs), generalized MPSCs (GMPSCs) and modified pseudo-orthogonal M-sequence sets, have been proposed for synchronous optical CDMA systems. In this paper, a new scheme is proposed for synchronous optical CDMA to increase the number of users and, consequently, to increase the total data rate without increasing the chip rate. The proposed scheme employs a GMPSC and an extended bi-orthogonal code which is a unipolar code generated from a bipolar Walsh code. Comprehensive comparisons between the proposed scheme and several conventional schemes are shown. Moreover, bit error rate performance and energy efficiency of the proposed scheme are evaluated comparing with those of the conventional optical CDMA schemes under atmospheric propagation environment.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020EAP1148/_p
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@ARTICLE{e104-a_9_1329,
author={Kyohei ONO, Shoichiro YAMASAKI, Shinichiro MIYAZAKI, Tomoko K. MATSUSHIMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Optical CDMA Scheme Using Generalized Modified Prime Sequence Codes and Extended Bi-Orthogonal Codes},
year={2021},
volume={E104-A},
number={9},
pages={1329-1338},
abstract={Optical code-division multiple-access (CDMA) techniques provide multi-user data transmission services in optical wireless and fiber communication systems. Several signature codes, such as modified prime sequence codes (MPSCs), generalized MPSCs (GMPSCs) and modified pseudo-orthogonal M-sequence sets, have been proposed for synchronous optical CDMA systems. In this paper, a new scheme is proposed for synchronous optical CDMA to increase the number of users and, consequently, to increase the total data rate without increasing the chip rate. The proposed scheme employs a GMPSC and an extended bi-orthogonal code which is a unipolar code generated from a bipolar Walsh code. Comprehensive comparisons between the proposed scheme and several conventional schemes are shown. Moreover, bit error rate performance and energy efficiency of the proposed scheme are evaluated comparing with those of the conventional optical CDMA schemes under atmospheric propagation environment.},
keywords={},
doi={10.1587/transfun.2020EAP1148},
ISSN={1745-1337},
month={September},}
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TY - JOUR
TI - Optical CDMA Scheme Using Generalized Modified Prime Sequence Codes and Extended Bi-Orthogonal Codes
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1329
EP - 1338
AU - Kyohei ONO
AU - Shoichiro YAMASAKI
AU - Shinichiro MIYAZAKI
AU - Tomoko K. MATSUSHIMA
PY - 2021
DO - 10.1587/transfun.2020EAP1148
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2021
AB - Optical code-division multiple-access (CDMA) techniques provide multi-user data transmission services in optical wireless and fiber communication systems. Several signature codes, such as modified prime sequence codes (MPSCs), generalized MPSCs (GMPSCs) and modified pseudo-orthogonal M-sequence sets, have been proposed for synchronous optical CDMA systems. In this paper, a new scheme is proposed for synchronous optical CDMA to increase the number of users and, consequently, to increase the total data rate without increasing the chip rate. The proposed scheme employs a GMPSC and an extended bi-orthogonal code which is a unipolar code generated from a bipolar Walsh code. Comprehensive comparisons between the proposed scheme and several conventional schemes are shown. Moreover, bit error rate performance and energy efficiency of the proposed scheme are evaluated comparing with those of the conventional optical CDMA schemes under atmospheric propagation environment.
ER -