A comparative study of two blind FIR equalizers


Chen, S., Cook, T.B. and Anderson, L.C. (2004) A comparative study of two blind FIR equalizers. Digital Signal Processing, 14, (1), 18-36.

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Description/Abstract

The paper investigates blind finite-impulse-response (FIR) equalization schemes for quadrature amplitude modulation (QAM) signalling. We compare a bootstrap maximum a posteriori probability (MAP) equalizer with a recently introduced concurrent constant modulus algorithm (CMA) and decision directed (DD) equalizer (CMA+DD). Both equalizers are known to outperform the CMA considerably. The concurrent CMA+DD equalizer has a complexity that is slightly more than twice of the CMA, and the bootstrap MAP equalizer has computational requirements that are only slightly more complex than the CMA. Simulation results indicate that the bootstrap MAP blind FIR equalizer has a faster convergence rate than the concurrent CMA+DD blind FIR equalizer, but tuning of the former is more complicated than the latter.

Item Type: Article
Additional Information: submitted for publication in Aug. 2001
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
Item ID: 258708
Date Deposited: 05 Jan 2004
Last Modified: 02 Mar 2012 03:04
Contributors: Chen, S. (Author)
Cook, T.B. (Author)
Anderson, L.C. (Author)
Date: January 2004
Additional Information: submitted for publication in Aug. 2001
Status: Published
Publisher: Elsvier
Further Information:Google Scholar
ISI Citation Count:19
URI: http://eprints.soton.ac.uk/id/eprint/258708

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