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
Dalam kertas ini, set kod penyebaran besar baharu dengan korelasi silang rendah seragam dicadangkan. Set kod yang dicadangkan mampu (1) meningkatkan bilangan pengguna yang diperuntukkan (kapasiti) dalam sistem capaian berbilang pembahagian kod berbilang pembawa (MC-CDMA) dan (2) mengurangkan nisbah kuasa puncak kepada purata (PAPR) sesuatu sistem pemultipleksan bahagian frekuensi ortogon (OFDM). Dalam kertas kerja ini, kami memperoleh set kod baharu dan membentangkan contoh untuk menunjukkan peningkatan prestasi sistem OFDM dan MC-CDMA. Set kod cadangan kami dengan panjang kod sebanyak N mempunyai K=2N+1 bilangan kod untuk menyokong sehingga (2N+1) pengguna dan mempamerkan sifat korelasi silang yang lebih rendah berbanding set kod penyebaran sedia ada. Keputusan kami dengan subcarrier N=16 mengesahkan bahawa set kod yang dicadangkan mengatasi set kod interferometri pembawa pseudo-ortogonal semasa (POCI) dengan keuntungan 5 dB pada tahap bit-error-rate (BER) 10-4 dalam saluran bunyi Gaussian putih tambahan (AWGN) dan keuntungan lebih daripada 3.6 dB dalam saluran pudar berbilang laluan.
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Salinan
Khoirul ANWAR, Masato SAITO, Takao HARA, Minoru OKADA, "Large Code Set for Double User Capacity and Low PAPR Level in Multicarrier Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E91-A, no. 8, pp. 2183-2194, August 2008, doi: 10.1093/ietfec/e91-a.8.2183.
Abstract: In this paper, a new large spreading code set with a uniform low cross-correlation is proposed. The proposed code set is capable of (1) increasing the number of assigned user (capacity) in a multicarrier code division multiple access (MC-CDMA) system and (2) reducing the peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) system. In this paper, we derive a new code set and present an example to demonstrate performance improvements of OFDM and MC-CDMA systems. Our proposed code set with code length of N has K=2N+1 number of codes for supporting up to (2N+1) users and exhibits lower cross correlation properties compared to the existing spreading code sets. Our results with subcarrier N=16 confirm that the proposed code set outperforms the current pseudo-orthogonal carrier interferometry (POCI) code set with gain of 5 dB at bit-error-rate (BER) level of 10-4 in the additive white Gaussian noise (AWGN) channel and gain of more than 3.6 dB in a multipath fading channel.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e91-a.8.2183/_p
Salinan
@ARTICLE{e91-a_8_2183,
author={Khoirul ANWAR, Masato SAITO, Takao HARA, Minoru OKADA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Large Code Set for Double User Capacity and Low PAPR Level in Multicarrier Systems},
year={2008},
volume={E91-A},
number={8},
pages={2183-2194},
abstract={In this paper, a new large spreading code set with a uniform low cross-correlation is proposed. The proposed code set is capable of (1) increasing the number of assigned user (capacity) in a multicarrier code division multiple access (MC-CDMA) system and (2) reducing the peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) system. In this paper, we derive a new code set and present an example to demonstrate performance improvements of OFDM and MC-CDMA systems. Our proposed code set with code length of N has K=2N+1 number of codes for supporting up to (2N+1) users and exhibits lower cross correlation properties compared to the existing spreading code sets. Our results with subcarrier N=16 confirm that the proposed code set outperforms the current pseudo-orthogonal carrier interferometry (POCI) code set with gain of 5 dB at bit-error-rate (BER) level of 10-4 in the additive white Gaussian noise (AWGN) channel and gain of more than 3.6 dB in a multipath fading channel.},
keywords={},
doi={10.1093/ietfec/e91-a.8.2183},
ISSN={1745-1337},
month={August},}
Salinan
TY - JOUR
TI - Large Code Set for Double User Capacity and Low PAPR Level in Multicarrier Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2183
EP - 2194
AU - Khoirul ANWAR
AU - Masato SAITO
AU - Takao HARA
AU - Minoru OKADA
PY - 2008
DO - 10.1093/ietfec/e91-a.8.2183
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E91-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2008
AB - In this paper, a new large spreading code set with a uniform low cross-correlation is proposed. The proposed code set is capable of (1) increasing the number of assigned user (capacity) in a multicarrier code division multiple access (MC-CDMA) system and (2) reducing the peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing (OFDM) system. In this paper, we derive a new code set and present an example to demonstrate performance improvements of OFDM and MC-CDMA systems. Our proposed code set with code length of N has K=2N+1 number of codes for supporting up to (2N+1) users and exhibits lower cross correlation properties compared to the existing spreading code sets. Our results with subcarrier N=16 confirm that the proposed code set outperforms the current pseudo-orthogonal carrier interferometry (POCI) code set with gain of 5 dB at bit-error-rate (BER) level of 10-4 in the additive white Gaussian noise (AWGN) channel and gain of more than 3.6 dB in a multipath fading channel.
ER -