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Title: A novel re-initialization technique for CMA in the presence of channel noise
Authors: Lambotharan, Sangarapillai
Constantinides, A.G.
Chambers, Jonathon
Skowratananont, K.
Issue Date: 1998
Publisher: © IEEE
Citation: LAMBOTHARAN, S. ... et al, 1998. A novel re-initialization technique for CMA in the presence of channel noise. IN: Conference Record of the Thirty-Second Asilomar Conference on Signals, Systems and Computers, Pacific Grove, California, 1st-4th November 1998, Vol. 1, pp. 489-492
Abstract: The error surface associated with the constant modulus algorithm (CMA) is multimodel. Therefore, an equalizer adapted with CMA has the potential to converge to a local minimum that has large noise amplification. A technique is, therefore, proposed based upon a solution of linear and quadratic equations to re-initialise the equalizer parameters. Linear equations are obtained from the fact that the retrieved transmitted signal with various delays which correspond to different minima are uncorrelated. The quadratic equations are obtained from the knowledge of the transmitted signal power. Simulations are included to demonstrate the robustness of this new scheme
Description: This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Version: Published
DOI: 10.1109/ACSSC.1998.750911
URI: https://dspace.lboro.ac.uk/2134/5814
ISBN: 0780351487
Appears in Collections:Conference Papers and Contributions (Electronic, Electrical and Systems Engineering)

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