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A self-structured adaptive decision feedback equalizer

Gong, Y. and Cowan, C.F.N. (2006) A self-structured adaptive decision feedback equalizer. IEEE Signal Processing Letters, 13 (3). pp. 169-172. ISSN 1070-9908

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To link to this item DOI: 10.1109/LSP.2005.862601


In a decision feedback equalizer (DFE), the structural parameters, including the decision delay, the feedforward filter (FFF), and feedback filter (FBF) lengths, must be carefully chosen, as they greatly influence the performance. Although the FBF length can be set as the channel memory, there is no closed-form expression for the FFF length and decision delay. In this letter, first we analytically show that the two-dimensional search for the optimum FFF length and decision delay can be simplified to a one-dimensional search and then describe a new adaptive DFE where the optimum structural parameters can be self-adapted.

Item Type:Article
ID Code:19159
Uncontrolled Keywords:FBF, FFF, adaptive DFE, channel memory, decision delay, decision feedback equalizer, feedback filter, feedforward filter, one-dimensional search, structural parameter, two-dimensional search
Publisher:IEEE Signal Processing Society

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