DocumentCode
1297666
Title
Mitigating error propagation of MMSE-DFE by joint parameter optimization
Author
Wang, Rujiang ; Delisle, Gilles Y.
Author_Institution
GIRD Syst. Inc., Cincinnati, OH, USA
Volume
57
Issue
8
fYear
2009
Firstpage
2239
Lastpage
2243
Abstract
A joint optimization of the decision feedback equalizer (DFE) filter weights and an erasure slicer is proposed in this letter. The feedback weights of the DFE are constrained with an accurate mean square error (MSE) model as the criterion. An erasure slicer is adopted to further decrease error propagation. Two consecutive 1-D optimizations are shown as good as that of a single 2-D optimization. Simulation results verify the performance improvements of the proposed scheme.
Keywords
decision feedback equalisers; least mean squares methods; DFE; MMSE; decision feedback equalizer; error propagation; mean square error model; parameter optimization; AWGN; Decision feedback equalizers; Filters; Gaussian noise; Intersymbol interference; Mean square error methods; Predictive models; Probability; Random variables; Statistics; x Terms¿DFE, ISI, constrained MMSE, error propagation, erasure slicer;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOMM.2009.08.070425
Filename
5201013
Link To Document