DocumentCode :
306683
Title :
Design and optimization of nonlinear mapping in decision feedback equalization
Author :
Kennedy, Rodney A. ; Ding, Zhi
Author_Institution :
Telecommun. Eng. RSISE, Australian Nat. Univ., Canberra, ACT, Australia
Volume :
2
fYear :
1996
fDate :
11-13 Dec 1996
Firstpage :
1888
Abstract :
We derive an optimal nonlinear quantizer to be used as a decision function in a decision feedback structure. The criterion used to determine the quantizer characteristic is the degree to which the propagation of decision errors is suppressed. We show that a soft saturation nonlinearity can outperform the standard nearest neighbour quantizer in a decision feedback equalizer structure in terms of error propagation suppression. This implies that on channels where noise is impulsive a soft saturation quantizer decision feedback structure is superior to a conventional decision feedback structure an a broad class of channels
Keywords :
decision feedback equalisers; error analysis; intersymbol interference; optimisation; telecommunication channels; communication channels; decision errors; decision feedback equalization; error propagation suppression; intersymbol interference; nonlinear mapping; optimal nonlinear quantizer; optimization; soft saturation nonlinearity; Additive noise; Decision feedback equalizers; Design engineering; Design optimization; Integrated circuit modeling; Intersymbol interference; Nearest neighbor searches; Output feedback; Stability; State feedback;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Conference_Location :
Kobe
ISSN :
0191-2216
Print_ISBN :
0-7803-3590-2
Type :
conf
DOI :
10.1109/CDC.1996.572850
Filename :
572850
Link To Document :
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