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.
| Original language | English |
|---|---|
| Pages (from-to) | 3125-3129 |
| Number of pages | 5 |
| Journal | IEICE Transactions on Communications |
| Volume | E87-B |
| Issue number | 10 |
| Publication status | Published - 2004 Oct 1 |
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Keywords
- Code-grouping
- Groupwise decorrelation
- Interference suppression
- OVSF
- W-CDMA downlink
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
Cite this
Interference suppression based on code grouping and groupwise decorrelation in multirate W-CDMA downlink. / Won, H. A.; Bae, Junghwa; Park, Jinwoo.
In: IEICE Transactions on Communications, Vol. E87-B, No. 10, 01.10.2004, p. 3125-3129.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interference suppression based on code grouping and groupwise decorrelation in multirate W-CDMA downlink
AU - Won, H. A.
AU - Bae, Junghwa
AU - Park, Jinwoo
PY - 2004/10/1
Y1 - 2004/10/1
N2 - 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.
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.
KW - Code-grouping
KW - Groupwise decorrelation
KW - Interference suppression
KW - OVSF
KW - W-CDMA downlink
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UR - http://www.scopus.com/inward/citedby.url?scp=7544246361&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:7544246361
VL - E87-B
SP - 3125
EP - 3129
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
SN - 0916-8516
IS - 10
ER -