Analysis of Decorrelating Decision-Feedback Multi-User Detectors for CDMA Systems
Summary :
Several multiuser detectors have been recently proposed to combat multiple-access interference and near-far problem for CDMA systems. The performance of a multi-user receiver in combining the decorrelating decision-feedback scheme for a synchronous DS/CDMA system is considered. Using the Gaussian approximation on the multiple-access interference and amplitude estimation errors, we derive a closed form expression for the BER performance of the decorrelating decision-feedback detector in single-path Rayleigh fading channel and power controlled system. And, we show that our analysis agrees with the results of simulations. A modified decision-feedback detector is also proposed and analyzes. Numerical results show that the modified dicision-feedback detector proposed in this paper results in enhanced performance.
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- IEICE TRANSACTIONS on Fundamentals Vol.E80-A No.6 pp.1055-1061
- Publication Date
- 1997/06/25
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- Special Section PAPER (Special Section of Papers Selected from 1996 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC'96))
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Seung Hoon SHIN, Kwang Jae LIM, Kyung Sup KWAK, "Analysis of Decorrelating Decision-Feedback Multi-User Detectors for CDMA Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E80-A, no. 6, pp. 1055-1061, June 1997, doi: .
Abstract: Several multiuser detectors have been recently proposed to combat multiple-access interference and near-far problem for CDMA systems. The performance of a multi-user receiver in combining the decorrelating decision-feedback scheme for a synchronous DS/CDMA system is considered. Using the Gaussian approximation on the multiple-access interference and amplitude estimation errors, we derive a closed form expression for the BER performance of the decorrelating decision-feedback detector in single-path Rayleigh fading channel and power controlled system. And, we show that our analysis agrees with the results of simulations. A modified decision-feedback detector is also proposed and analyzes. Numerical results show that the modified dicision-feedback detector proposed in this paper results in enhanced performance.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e80-a_6_1055/_p
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@ARTICLE{e80-a_6_1055,
author={Seung Hoon SHIN, Kwang Jae LIM, Kyung Sup KWAK, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Analysis of Decorrelating Decision-Feedback Multi-User Detectors for CDMA Systems},
year={1997},
volume={E80-A},
number={6},
pages={1055-1061},
abstract={Several multiuser detectors have been recently proposed to combat multiple-access interference and near-far problem for CDMA systems. The performance of a multi-user receiver in combining the decorrelating decision-feedback scheme for a synchronous DS/CDMA system is considered. Using the Gaussian approximation on the multiple-access interference and amplitude estimation errors, we derive a closed form expression for the BER performance of the decorrelating decision-feedback detector in single-path Rayleigh fading channel and power controlled system. And, we show that our analysis agrees with the results of simulations. A modified decision-feedback detector is also proposed and analyzes. Numerical results show that the modified dicision-feedback detector proposed in this paper results in enhanced performance.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Analysis of Decorrelating Decision-Feedback Multi-User Detectors for CDMA Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1055
EP - 1061
AU - Seung Hoon SHIN
AU - Kwang Jae LIM
AU - Kyung Sup KWAK
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E80-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 1997
AB - Several multiuser detectors have been recently proposed to combat multiple-access interference and near-far problem for CDMA systems. The performance of a multi-user receiver in combining the decorrelating decision-feedback scheme for a synchronous DS/CDMA system is considered. Using the Gaussian approximation on the multiple-access interference and amplitude estimation errors, we derive a closed form expression for the BER performance of the decorrelating decision-feedback detector in single-path Rayleigh fading channel and power controlled system. And, we show that our analysis agrees with the results of simulations. A modified decision-feedback detector is also proposed and analyzes. Numerical results show that the modified dicision-feedback detector proposed in this paper results in enhanced performance.
ER -
English
