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
Dans cette lettre, un émetteur de faible complexité est proposé pour les liaisons descendantes des systèmes de multiplexage par répartition orthogonale des codes de fréquence (OFCDM). Le principe est basé sur un étalement temps-fréquence conjoint et une transformée de Fourier rapide inverse (TFS-IFFT), qui combine l'étalement de fréquence avec des étages partiels de l'IFFT, de manière à simplifier le traitement en temps réel. Comparé à l'émetteur conventionnel, l'émetteur OFCDM proposé présente une complexité de calcul en temps réel moindre, en particulier pour ceux présentant un facteur d'étalement élevé ou un faible niveau de modulation. De plus, le TFS-IFFT proposé peut également être appliqué à d'autres systèmes d'étalement de fréquence, tels que MC-CDMA, pour réduire la complexité.
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Lilin DAN, Yue XIAO, Wei NI, Shaoqian LI, "A Low Complexity Architecture for OFCDM Downlink Transmitter Using Joint Time-Frequency Spreading and IFFT" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 10, pp. 3071-3074, October 2009, doi: 10.1587/transcom.E92.B.3071.
Abstract: In this letter, a low complexity transmitter is proposed for the downlinks of orthogonal frequency code division multiplexing (OFCDM) systems. The principle is based on a joint time-frequency spreading and inverse fast Fourier transform (TFS-IFFT), which combines the frequency spreading with partial stages of IFFT, so as to simplify the real-time processing. Compared with the conventional one, the proposed OFCDM transmitter is of lower real-time computational complexity, especially for those with large spreading factor or low modulation level. Furthermore, the proposed TFS-IFFT can also be applied to other frequency spreading systems, such as MC-CDMA, for complexity reduction.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.3071/_p
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@ARTICLE{e92-b_10_3071,
author={Lilin DAN, Yue XIAO, Wei NI, Shaoqian LI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Low Complexity Architecture for OFCDM Downlink Transmitter Using Joint Time-Frequency Spreading and IFFT},
year={2009},
volume={E92-B},
number={10},
pages={3071-3074},
abstract={In this letter, a low complexity transmitter is proposed for the downlinks of orthogonal frequency code division multiplexing (OFCDM) systems. The principle is based on a joint time-frequency spreading and inverse fast Fourier transform (TFS-IFFT), which combines the frequency spreading with partial stages of IFFT, so as to simplify the real-time processing. Compared with the conventional one, the proposed OFCDM transmitter is of lower real-time computational complexity, especially for those with large spreading factor or low modulation level. Furthermore, the proposed TFS-IFFT can also be applied to other frequency spreading systems, such as MC-CDMA, for complexity reduction.},
keywords={},
doi={10.1587/transcom.E92.B.3071},
ISSN={1745-1345},
month={October},}
Copier
TY - JOUR
TI - A Low Complexity Architecture for OFCDM Downlink Transmitter Using Joint Time-Frequency Spreading and IFFT
T2 - IEICE TRANSACTIONS on Communications
SP - 3071
EP - 3074
AU - Lilin DAN
AU - Yue XIAO
AU - Wei NI
AU - Shaoqian LI
PY - 2009
DO - 10.1587/transcom.E92.B.3071
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2009
AB - In this letter, a low complexity transmitter is proposed for the downlinks of orthogonal frequency code division multiplexing (OFCDM) systems. The principle is based on a joint time-frequency spreading and inverse fast Fourier transform (TFS-IFFT), which combines the frequency spreading with partial stages of IFFT, so as to simplify the real-time processing. Compared with the conventional one, the proposed OFCDM transmitter is of lower real-time computational complexity, especially for those with large spreading factor or low modulation level. Furthermore, the proposed TFS-IFFT can also be applied to other frequency spreading systems, such as MC-CDMA, for complexity reduction.
ER -