The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise

Wonzoo Chung; James P. Leblanc

doi:10.1109/ICASSP.1998.679581

The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise

Wonzoo Chung, James P. Leblanc

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

11 Citations (Scopus)

Abstract

We study the local minima relocation of the fractionally spaced constant modulus algorithm (FSE-CMA) cost function in the presence of noise. Local minima move in a particular direction as the noise power increases and their number may be eventually reduced. In such cases the performance of FSE-CMA may fail to adequately reduce intersymbol interference (ISI), but achieve an approximated MMSE by reducing its equalizer noise gain under certain constraints. We analyze the mechanism of relocation of the FSE-CMA cost function local minima in terms of the auto-correlation matrix of the sub-channel convolution matrix and its eigenvectors.

Original language	English
Title of host publication	Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3345-3348
Number of pages	4
ISBN (Print)	0780344286, 9780780344280
DOIs	https://doi.org/10.1109/ICASSP.1998.679581
Publication status	Published - 1998
Externally published	Yes
Event	1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998 - Seattle, WA, United States Duration: 1998 May 12 → 1998 May 15

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	6
ISSN (Print)	1520-6149

Conference

Conference	1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Country/Territory	United States
City	Seattle, WA
Period	98/5/12 → 98/5/15

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

Access to Document

10.1109/ICASSP.1998.679581

Cite this

Chung, W., & Leblanc, J. P. (1998). The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise. In Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998 (pp. 3345-3348). Article 679581 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 6). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICASSP.1998.679581

The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise. / Chung, Wonzoo; Leblanc, James P.
Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998. Institute of Electrical and Electronics Engineers Inc., 1998. p. 3345-3348 679581 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 6).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chung, W & Leblanc, JP 1998, The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise. in Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998., 679581, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 6, Institute of Electrical and Electronics Engineers Inc., pp. 3345-3348, 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998, Seattle, WA, United States, 98/5/12. https://doi.org/10.1109/ICASSP.1998.679581

Chung W, Leblanc JP. The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise. In Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998. Institute of Electrical and Electronics Engineers Inc. 1998. p. 3345-3348. 679581. (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings). doi: 10.1109/ICASSP.1998.679581

Chung, Wonzoo ; Leblanc, James P. / The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise. Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998. Institute of Electrical and Electronics Engineers Inc., 1998. pp. 3345-3348 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings).

@inproceedings{4ea02cc90d2640688330459d04d95475,

title = "The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise",

abstract = "We study the local minima relocation of the fractionally spaced constant modulus algorithm (FSE-CMA) cost function in the presence of noise. Local minima move in a particular direction as the noise power increases and their number may be eventually reduced. In such cases the performance of FSE-CMA may fail to adequately reduce intersymbol interference (ISI), but achieve an approximated MMSE by reducing its equalizer noise gain under certain constraints. We analyze the mechanism of relocation of the FSE-CMA cost function local minima in terms of the auto-correlation matrix of the sub-channel convolution matrix and its eigenvectors.",

author = "Wonzoo Chung and Leblanc, {James P.}",

note = "Copyright: Copyright 2017 Elsevier B.V., All rights reserved.; 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998 ; Conference date: 12-05-1998 Through 15-05-1998",

year = "1998",

doi = "10.1109/ICASSP.1998.679581",

language = "English",

isbn = "0780344286",

series = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "3345--3348",

booktitle = "Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998",

}

TY - GEN

T1 - The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise

AU - Chung, Wonzoo

AU - Leblanc, James P.

PY - 1998

Y1 - 1998

N2 - We study the local minima relocation of the fractionally spaced constant modulus algorithm (FSE-CMA) cost function in the presence of noise. Local minima move in a particular direction as the noise power increases and their number may be eventually reduced. In such cases the performance of FSE-CMA may fail to adequately reduce intersymbol interference (ISI), but achieve an approximated MMSE by reducing its equalizer noise gain under certain constraints. We analyze the mechanism of relocation of the FSE-CMA cost function local minima in terms of the auto-correlation matrix of the sub-channel convolution matrix and its eigenvectors.

AB - We study the local minima relocation of the fractionally spaced constant modulus algorithm (FSE-CMA) cost function in the presence of noise. Local minima move in a particular direction as the noise power increases and their number may be eventually reduced. In such cases the performance of FSE-CMA may fail to adequately reduce intersymbol interference (ISI), but achieve an approximated MMSE by reducing its equalizer noise gain under certain constraints. We analyze the mechanism of relocation of the FSE-CMA cost function local minima in terms of the auto-correlation matrix of the sub-channel convolution matrix and its eigenvectors.

UR - http://www.scopus.com/inward/record.url?scp=0031634879&partnerID=8YFLogxK

U2 - 10.1109/ICASSP.1998.679581

DO - 10.1109/ICASSP.1998.679581

M3 - Conference contribution

AN - SCOPUS:0031634879

SN - 0780344286

SN - 9780780344280

T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

SP - 3345

EP - 3348

BT - Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998

Y2 - 12 May 1998 through 15 May 1998

ER -

The local minima of fractionally-spaced CMA blind equalizer cost function in the presence of channel noise

Abstract

Publication series

Conference

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this