Low-rank minimum variance CDMA receiver in multipath channels

Xiaodong Cai, Hongya Ge, Ali N. Akansu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Minimum variance receiver has recently been proposed to suppress the multiple-access interference (MAI) blindly in CDMA channels by minimizing the receiver's output variance based on constrained optimization. In this paper, we propose a low-complexity minimum variance receiver that achieves almost the same performance as the high-complexity one with the optimal constraint vector. The proposed receiver is a RAKE receiver followed by an equal gain combiner. The impulse response of the filter in each finger is obtained by the minimum variance criterion. The low-rank minimum variance receiver uses a reduced-rank approximation of the estimated data covariance matrix. Its performance is better than the full-rank version of the receiver. The receiver is implemented adaptively with the same structure as a generalized sidelobe canceler.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages2877-2880
Number of pages4
Volume5
StatePublished - 2000
Externally publishedYes
Event2000 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing - Istanbul, Turkey
Duration: Jun 5 2000Jun 9 2000

Other

Other2000 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing
CityIstanbul, Turkey
Period6/5/006/9/00

Fingerprint

Multiple access interference
Multipath propagation
code division multiple access
Constrained optimization
Covariance matrix
Impulse response
Code division multiple access
receivers
multiple access
sidelobes
impulses
interference
filters
optimization
output
approximation

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Cai, X., Ge, H., & Akansu, A. N. (2000). Low-rank minimum variance CDMA receiver in multipath channels. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 5, pp. 2877-2880). IEEE.

Low-rank minimum variance CDMA receiver in multipath channels. / Cai, Xiaodong; Ge, Hongya; Akansu, Ali N.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 5 IEEE, 2000. p. 2877-2880.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cai, X, Ge, H & Akansu, AN 2000, Low-rank minimum variance CDMA receiver in multipath channels. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 5, IEEE, pp. 2877-2880, 2000 IEEE Interntional Conference on Acoustics, Speech, and Signal Processing, Istanbul, Turkey, 6/5/00.
Cai X, Ge H, Akansu AN. Low-rank minimum variance CDMA receiver in multipath channels. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 5. IEEE. 2000. p. 2877-2880
Cai, Xiaodong ; Ge, Hongya ; Akansu, Ali N. / Low-rank minimum variance CDMA receiver in multipath channels. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 5 IEEE, 2000. pp. 2877-2880
@inproceedings{e1691c8967544b369f1ea270fdbc134a,
title = "Low-rank minimum variance CDMA receiver in multipath channels",
abstract = "Minimum variance receiver has recently been proposed to suppress the multiple-access interference (MAI) blindly in CDMA channels by minimizing the receiver's output variance based on constrained optimization. In this paper, we propose a low-complexity minimum variance receiver that achieves almost the same performance as the high-complexity one with the optimal constraint vector. The proposed receiver is a RAKE receiver followed by an equal gain combiner. The impulse response of the filter in each finger is obtained by the minimum variance criterion. The low-rank minimum variance receiver uses a reduced-rank approximation of the estimated data covariance matrix. Its performance is better than the full-rank version of the receiver. The receiver is implemented adaptively with the same structure as a generalized sidelobe canceler.",
author = "Xiaodong Cai and Hongya Ge and Akansu, {Ali N.}",
year = "2000",
language = "English (US)",
volume = "5",
pages = "2877--2880",
booktitle = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",
publisher = "IEEE",

}

TY - GEN

T1 - Low-rank minimum variance CDMA receiver in multipath channels

AU - Cai, Xiaodong

AU - Ge, Hongya

AU - Akansu, Ali N.

PY - 2000

Y1 - 2000

N2 - Minimum variance receiver has recently been proposed to suppress the multiple-access interference (MAI) blindly in CDMA channels by minimizing the receiver's output variance based on constrained optimization. In this paper, we propose a low-complexity minimum variance receiver that achieves almost the same performance as the high-complexity one with the optimal constraint vector. The proposed receiver is a RAKE receiver followed by an equal gain combiner. The impulse response of the filter in each finger is obtained by the minimum variance criterion. The low-rank minimum variance receiver uses a reduced-rank approximation of the estimated data covariance matrix. Its performance is better than the full-rank version of the receiver. The receiver is implemented adaptively with the same structure as a generalized sidelobe canceler.

AB - Minimum variance receiver has recently been proposed to suppress the multiple-access interference (MAI) blindly in CDMA channels by minimizing the receiver's output variance based on constrained optimization. In this paper, we propose a low-complexity minimum variance receiver that achieves almost the same performance as the high-complexity one with the optimal constraint vector. The proposed receiver is a RAKE receiver followed by an equal gain combiner. The impulse response of the filter in each finger is obtained by the minimum variance criterion. The low-rank minimum variance receiver uses a reduced-rank approximation of the estimated data covariance matrix. Its performance is better than the full-rank version of the receiver. The receiver is implemented adaptively with the same structure as a generalized sidelobe canceler.

UR - http://www.scopus.com/inward/record.url?scp=0033676984&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033676984&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0033676984

VL - 5

SP - 2877

EP - 2880

BT - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

PB - IEEE

ER -