Interference Suppression Based on Code Grouping and Groupwise Decorrelation in Multirate W-CDMA Downlink

Won HA; Junghwa BAE; Jinwoo PARK

Interference Suppression Based on Code Grouping and Groupwise Decorrelation in Multirate W-CDMA Downlink

Won HA, Junghwa BAE, Jinwoo PARK

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In this paper, we presented a new interference suppression method based on groupwise decorrelation for the multirate wideband-code division multiple access (W-CDMA) downlink. Code grouping in the proposed method is performed according to the correlation property between the mother code and the child code in the orthogonal variable spreading factor (OVSF) code tree. The decorrelation process based on the grouped codes, so called groupwise decorrelation, is then performed to suppress the interference induced in the downlink propagation. We demonstrate that the proposed method can enhance the performance significantly, with lower computational complexity and higher operational efficiency in which any information about interference users (code, data, amplitude) is not required to know in prior at the detection stage.

Publication: IEICE TRANSACTIONS on Communications Vol.E87-B No.10 pp.3125-3129

Publication Date: 2004/10/01

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Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Won HA, Junghwa BAE, Jinwoo PARK, "Interference Suppression Based on Code Grouping and Groupwise Decorrelation in Multirate W-CDMA Downlink" in IEICE TRANSACTIONS on Communications, vol. E87-B, no. 10, pp. 3125-3129, October 2004, doi: .
Abstract: In this paper, we presented a new interference suppression method based on groupwise decorrelation for the multirate wideband-code division multiple access (W-CDMA) downlink. Code grouping in the proposed method is performed according to the correlation property between the mother code and the child code in the orthogonal variable spreading factor (OVSF) code tree. The decorrelation process based on the grouped codes, so called groupwise decorrelation, is then performed to suppress the interference induced in the downlink propagation. We demonstrate that the proposed method can enhance the performance significantly, with lower computational complexity and higher operational efficiency in which any information about interference users (code, data, amplitude) is not required to know in prior at the detection stage.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/e87-b_10_3125/_p

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@ARTICLE{e87-b_10_3125,
author={Won HA, Junghwa BAE, Jinwoo PARK, },
journal={IEICE TRANSACTIONS on Communications},
title={Interference Suppression Based on Code Grouping and Groupwise Decorrelation in Multirate W-CDMA Downlink},
year={2004},
volume={E87-B},
number={10},
pages={3125-3129},
abstract={In this paper, we presented a new interference suppression method based on groupwise decorrelation for the multirate wideband-code division multiple access (W-CDMA) downlink. Code grouping in the proposed method is performed according to the correlation property between the mother code and the child code in the orthogonal variable spreading factor (OVSF) code tree. The decorrelation process based on the grouped codes, so called groupwise decorrelation, is then performed to suppress the interference induced in the downlink propagation. We demonstrate that the proposed method can enhance the performance significantly, with lower computational complexity and higher operational efficiency in which any information about interference users (code, data, amplitude) is not required to know in prior at the detection stage.},
keywords={},
doi={},
ISSN={},
month={October},}

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TY - JOUR
TI - Interference Suppression Based on Code Grouping and Groupwise Decorrelation in Multirate W-CDMA Downlink
T2 - IEICE TRANSACTIONS on Communications
SP - 3125
EP - 3129
AU - Won HA
AU - Junghwa BAE
AU - Jinwoo PARK
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2004
AB - In this paper, we presented a new interference suppression method based on groupwise decorrelation for the multirate wideband-code division multiple access (W-CDMA) downlink. Code grouping in the proposed method is performed according to the correlation property between the mother code and the child code in the orthogonal variable spreading factor (OVSF) code tree. The decorrelation process based on the grouped codes, so called groupwise decorrelation, is then performed to suppress the interference induced in the downlink propagation. We demonstrate that the proposed method can enhance the performance significantly, with lower computational complexity and higher operational efficiency in which any information about interference users (code, data, amplitude) is not required to know in prior at the detection stage.
ER -