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
Cet article analyse les performances d'une structure de réception commune pour les systèmes de communication DS-CDMA. Afin de réduire la dégradation indésirable des performances due aux interférences d'accès multiples et au problème de proximité dans un environnement de canal à évanouissement par trajets multiples, cet article exploite la structure de réception pour la communication multi-utilisateur composée d'un récepteur Beamformer-RAKE et d'un détecteur multi-utilisateur décorrélant. La structure de réception DS-CDMA proposée atténue la dégradation des performances provoquée par l'amélioration du bruit et révèle moins de complexité de calcul en utilisant le combineur temporel à trajets multiples avant d'accéder à la détection de décorrélation. Une technique efficace d'inversion de Toeplitz par bloc utilisant les polynômes matriciels de Levinson est également introduite pour réduire davantage la charge de calcul rencontrée lors de l'application du processus de détection multi-utilisateur décorrélant comme d'habitude. Les résultats de simulation sont effectués pour démontrer les performances supérieures de la structure de détection multi-utilisateurs proposée dans le canal CDMA à évanouissements multitrajets.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copier
Woncheol LEE, Jonggil NAM, Chul RYU, "Joint Beamformer-RAKE and Decorrelating Multiuser Detector Using Matrix Levinson Polynomials" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 8, pp. 1640-1648, August 2000, doi: .
Abstract: This paper analyses the performance of a joint receiving structure for DS-CDMA communications systems. To reduce undesirable performance degradation due to the multiple access interferences and the near-far problem in multipath fading channel environment, this paper exploits the receiving structure for the multiuser communication composed of a beamformer-RAKE receiver and a decorrelating multiuser detector. The proposed DS-CDMA receiving structure mitigates the performance impairment invoked from the noise enhancement and reveals less computational complexity by utilizing the multipath temporal combiner prior to accessing the decorrelating detection. Also an efficient block Toeplitz inversion technique using the matrix Levinson polynomials is introduced to further diminish the computational burden encountered from applying the decorrelating multiuser detection process as in usual. Simulation results are conducted to demonstrate the superior performance of the proposed multiuser detection structure in multipath fading CDMA channel.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_8_1640/_p
Copier
@ARTICLE{e83-b_8_1640,
author={Woncheol LEE, Jonggil NAM, Chul RYU, },
journal={IEICE TRANSACTIONS on Communications},
title={Joint Beamformer-RAKE and Decorrelating Multiuser Detector Using Matrix Levinson Polynomials},
year={2000},
volume={E83-B},
number={8},
pages={1640-1648},
abstract={This paper analyses the performance of a joint receiving structure for DS-CDMA communications systems. To reduce undesirable performance degradation due to the multiple access interferences and the near-far problem in multipath fading channel environment, this paper exploits the receiving structure for the multiuser communication composed of a beamformer-RAKE receiver and a decorrelating multiuser detector. The proposed DS-CDMA receiving structure mitigates the performance impairment invoked from the noise enhancement and reveals less computational complexity by utilizing the multipath temporal combiner prior to accessing the decorrelating detection. Also an efficient block Toeplitz inversion technique using the matrix Levinson polynomials is introduced to further diminish the computational burden encountered from applying the decorrelating multiuser detection process as in usual. Simulation results are conducted to demonstrate the superior performance of the proposed multiuser detection structure in multipath fading CDMA channel.},
keywords={},
doi={},
ISSN={},
month={August},}
Copier
TY - JOUR
TI - Joint Beamformer-RAKE and Decorrelating Multiuser Detector Using Matrix Levinson Polynomials
T2 - IEICE TRANSACTIONS on Communications
SP - 1640
EP - 1648
AU - Woncheol LEE
AU - Jonggil NAM
AU - Chul RYU
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2000
AB - This paper analyses the performance of a joint receiving structure for DS-CDMA communications systems. To reduce undesirable performance degradation due to the multiple access interferences and the near-far problem in multipath fading channel environment, this paper exploits the receiving structure for the multiuser communication composed of a beamformer-RAKE receiver and a decorrelating multiuser detector. The proposed DS-CDMA receiving structure mitigates the performance impairment invoked from the noise enhancement and reveals less computational complexity by utilizing the multipath temporal combiner prior to accessing the decorrelating detection. Also an efficient block Toeplitz inversion technique using the matrix Levinson polynomials is introduced to further diminish the computational burden encountered from applying the decorrelating multiuser detection process as in usual. Simulation results are conducted to demonstrate the superior performance of the proposed multiuser detection structure in multipath fading CDMA channel.
ER -