Construction of Dual OVSF Codes with Lower Correlations

Jia HOU; Moon Ho LEE

doi:10.1093/ietfec/e89-a.11.3363

Construction of Dual OVSF Codes with Lower Correlations

Jia HOU, Moon Ho LEE

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In wide-band code division multiple access (WCDMA), orthogonal variable spreading factors (OVSF) codes are assigned to different users to preserve the orthogonality between users' physical channels. In this letter, we present the dual OVSF code, which can transmit the variable data rates by suing two different modulated signals without loss of the orthogonality. The bit error rate (BER) performance under a multi-user environment suffering the additive white Gaussian noise (AWGN) channel and correlations of those codes are evaluated. The results demonstrate that the proposed dual OVSF scheme could provide flexible rates and lower correlation values with a slight increase in complexity.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.11 pp.3363-3367

Publication Date: 2006/11/01

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Online ISSN: 1745-1337

DOI: 10.1093/ietfec/e89-a.11.3363

Type of Manuscript: LETTER

Category: Coding Theory

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Jia HOU, Moon Ho LEE, "Construction of Dual OVSF Codes with Lower Correlations" in IEICE TRANSACTIONS on Fundamentals, vol. E89-A, no. 11, pp. 3363-3367, November 2006, doi: 10.1093/ietfec/e89-a.11.3363.
Abstract: In wide-band code division multiple access (WCDMA), orthogonal variable spreading factors (OVSF) codes are assigned to different users to preserve the orthogonality between users' physical channels. In this letter, we present the dual OVSF code, which can transmit the variable data rates by suing two different modulated signals without loss of the orthogonality. The bit error rate (BER) performance under a multi-user environment suffering the additive white Gaussian noise (AWGN) channel and correlations of those codes are evaluated. The results demonstrate that the proposed dual OVSF scheme could provide flexible rates and lower correlation values with a slight increase in complexity.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e89-a.11.3363/_p

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@ARTICLE{e89-a_11_3363,
author={Jia HOU, Moon Ho LEE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Construction of Dual OVSF Codes with Lower Correlations},
year={2006},
volume={E89-A},
number={11},
pages={3363-3367},
abstract={In wide-band code division multiple access (WCDMA), orthogonal variable spreading factors (OVSF) codes are assigned to different users to preserve the orthogonality between users' physical channels. In this letter, we present the dual OVSF code, which can transmit the variable data rates by suing two different modulated signals without loss of the orthogonality. The bit error rate (BER) performance under a multi-user environment suffering the additive white Gaussian noise (AWGN) channel and correlations of those codes are evaluated. The results demonstrate that the proposed dual OVSF scheme could provide flexible rates and lower correlation values with a slight increase in complexity.},
keywords={},
doi={10.1093/ietfec/e89-a.11.3363},
ISSN={1745-1337},
month={November},}

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TY - JOUR
TI - Construction of Dual OVSF Codes with Lower Correlations
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 3363
EP - 3367
AU - Jia HOU
AU - Moon Ho LEE
PY - 2006
DO - 10.1093/ietfec/e89-a.11.3363
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E89-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2006
AB - In wide-band code division multiple access (WCDMA), orthogonal variable spreading factors (OVSF) codes are assigned to different users to preserve the orthogonality between users' physical channels. In this letter, we present the dual OVSF code, which can transmit the variable data rates by suing two different modulated signals without loss of the orthogonality. The bit error rate (BER) performance under a multi-user environment suffering the additive white Gaussian noise (AWGN) channel and correlations of those codes are evaluated. The results demonstrate that the proposed dual OVSF scheme could provide flexible rates and lower correlation values with a slight increase in complexity.
ER -