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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 In 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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publishing date
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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)
in
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
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
2008-10-06 15:35:10
date last changed
2016-10-13 04:43:33
@misc{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},
  keyword      = {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    = {ARRAY(0x8c42010)},
  series       = {ICIECA 2005: International Conference on Industrial Electronics and Control Applications 2005},
  title        = {Pre-Whitened Dithered Signed-Error Constant Modulus Algorithm for Efficient Blind Channel Equalization},
  url          = {http://dx.doi.org/10.1109/ICIECA.2005.1644366},
  year         = {2005},
}