Butt, N.R. and Cheded, L. (2005) Pre-whitened dithered signed-error constant modulus algorithm for efficient blind channel equalization. Industrial Electronics and Control Applications, 2005. ICIECA 2005. International conference, 1.
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.
|Divisions:||College Of Computer Sciences and Engineering > Systems Engineering Dept|
|Creators:||Butt, N.R. and Cheded, L.|
|Deposited By:||KFUPM ePrints Admin|
|Deposited On:||24 Jun 2008 16:47|
|Last Modified:||12 Apr 2011 13:16|
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