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
Kertas kerja ini mencadangkan skim penghantaran radio mudah alih berkelajuan tinggi selari baharu menggunakan kod anjakan kitaran yang dijana daripada jujukan M yang diubah suai. Urutan M yang diubah suai dipincang dengan arus terus (dc) malar pada jujukan M dan dimasukkan cip pengawal sebelum dan selepas jujukan M pincang ini. Sistem yang dicadangkan mempunyai ciri-ciri berikut: i) Keortogonan kod disimpan bukan sahaja antara gelombang langsung setiap saluran selari tetapi juga antara gelombang langsung dan tertunda dalam cip pengawal; ii) Adalah mungkin untuk mengurangkan bilangan jenis kod yang diperuntukkan kepada seorang pengguna; dan iii) Mudah untuk memulihkan pemasaan kod dan cip. Dalam kertas kerja ini, lebih-lebih lagi, prestasi sistem yang dicadangkan telah dinilai dari segi kadar ralat bit (BER) di bawah hingar Gaussian putih tambahan (AWGN), satu laluan Rayleigh pudar tidak selektif dan saluran pudar Rayleigh pancang berganda. Hasilnya, skim penghantaran yang dicadangkan boleh menghantar beberapa Mbps dalam saluran pudar Rayleigh berkelajuan tinggi berkelajuan tinggi dengan kualiti yang lebih baik berbanding dengan skim penghantaran CDM berbilang kod konvensional berdasarkan jujukan M.
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Salinan
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
Salinan
@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},}
Salinan
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 -