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Pre-Whitened Dithered Signed-Error Constant Modulus Algorithm for Efficient Blind Channel Equalization

Butt, Naveed LU and Cheded, Lahouari (2005) ICIECA 2005: International Conference on Industrial Electronics and Control Applications 2005
Abstract
Blind channel equalization has gained great importance in the world of communications. Among a large number of available blind equalization algorithms, the CMA (Constant Modulus Algorithm) enjoys widespread popularity because of its LMS-like complexity and robustness. Two important improvements on the CMA performance are the Dithered Signed-Error CMA (DSE-CMA) and the Pre-Whitened CMA (PW-CMA). The DSE-CMA is an approach to reduce the computational complexity of the CMA while retaining its robustness and the PW-CMA aims at improving the convergence rate of the CMA in case of channels exhibiting large frequency response deviations. In this paper we review the two approaches and propose a new scheme combining the virtues of the two. The... (More)
Blind channel equalization has gained great importance in the world of communications. Among a large number of available blind equalization algorithms, the CMA (Constant Modulus Algorithm) enjoys widespread popularity because of its LMS-like complexity and robustness. Two important improvements on the CMA performance are the Dithered Signed-Error CMA (DSE-CMA) and the Pre-Whitened CMA (PW-CMA). The DSE-CMA is an approach to reduce the computational complexity of the CMA while retaining its robustness and the PW-CMA aims at improving the convergence rate of the CMA in case of channels exhibiting large frequency response deviations. In this paper we review the two approaches and propose a new scheme combining the virtues of the two. The combined scheme is computationally simpler than the PW-CMA and provides better convergence than the DSE-CMA. It is particularly suited for the situations where ill-convergence needs to be treated with minimum additional complexity and without loss of robustness. © 2005 IEEE. (Less)
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author
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publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Algorithms, Communication channels (information theory), Computational complexity, Error analysis, Frequency response, Robustness (control systems), Constant Modulus Algorithm (CMA), Blind equalization algorithms, Pre-Whitened CMA (PW-CMA)
host publication
ICIECA 2005: International Conference on Industrial Electronics and Control Applications 2005
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
ICIECA 2005: International Conference on Industrial Electronics and Control Applications 2005
conference location
Quito, Ecuador
conference dates
2005-11-29 - 2005-12-02
external identifiers
  • scopus:33947148651
DOI
10.1109/ICIECA.2005.1644366
language
English
LU publication?
no
id
fbb9d21f-04bc-4bbe-a404-3cc2b2eda7a5 (old id 1238198)
date added to LUP
2016-04-04 11:02:20
date last changed
2022-01-29 21:14:46
@inproceedings{fbb9d21f-04bc-4bbe-a404-3cc2b2eda7a5,
  abstract     = {{Blind channel equalization has gained great importance in the world of communications. Among a large number of available blind equalization algorithms, the CMA (Constant Modulus Algorithm) enjoys widespread popularity because of its LMS-like complexity and robustness. Two important improvements on the CMA performance are the Dithered Signed-Error CMA (DSE-CMA) and the Pre-Whitened CMA (PW-CMA). The DSE-CMA is an approach to reduce the computational complexity of the CMA while retaining its robustness and the PW-CMA aims at improving the convergence rate of the CMA in case of channels exhibiting large frequency response deviations. In this paper we review the two approaches and propose a new scheme combining the virtues of the two. The combined scheme is computationally simpler than the PW-CMA and provides better convergence than the DSE-CMA. It is particularly suited for the situations where ill-convergence needs to be treated with minimum additional complexity and without loss of robustness. © 2005 IEEE.}},
  author       = {{Butt, Naveed and Cheded, Lahouari}},
  booktitle    = {{ICIECA 2005: International Conference on Industrial Electronics and Control Applications 2005}},
  keywords     = {{Algorithms; Communication channels (information theory); Computational complexity; Error analysis; Frequency response; Robustness (control systems); Constant Modulus Algorithm (CMA); Blind equalization algorithms; Pre-Whitened CMA (PW-CMA)}},
  language     = {{eng}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{Pre-Whitened Dithered Signed-Error Constant Modulus Algorithm for Efficient Blind Channel Equalization}},
  url          = {{http://dx.doi.org/10.1109/ICIECA.2005.1644366}},
  doi          = {{10.1109/ICIECA.2005.1644366}},
  year         = {{2005}},
}