A stochastic unbiased minimum mean error rate algorithm for decision feedback equalizers

Authors:
Rainfield Y. Yen;Mei Ting Cha;Ming-Hwa Young
Affiliations:
Department of Electrical Engineering, Tamkang University, Tamsui, Taipei, Taiwan;Photonics Laboratory, Department of Computer Systems and Communication Engineering, Universiti Putra Malaysia, Selanor, Malaysia;Department of Electrical Engineering, Tamkang University, Tamsui, Taipei, Taiwan
Venue:
SPPRA'06 Proceedings of the 24th IASTED international conference on Signal processing, pattern recognition, and applications
Year:
2006

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Abstract

Capitalizing on a well-known minimum mean square error (MMSE) property for decision feedback equalization (DFE) along with the use of stochastic gradient approach, we formulate an adaptive minimum error rate (MER) algorithm for DFE over M-ary PAM channels to be named as stochastic unbiased minimum mean error rate (SUMMER). Comparisons are made between SUMMER and existing MER algorithms in the literature and SUMMER is found to outperform others.