NDLI: Noise-predictive partial-response equalizers and applications

Content Provider	IEEE Xplore Digital Library
Author	Chevillat, P.R. Eleftheriou, E. Maiwald, D.
Copyright Year	1992
Description	Author affiliation: IBM Zurich Res. Lab., Ruschlikon, Switzerland (Chevillat, P.R.; Eleftheriou, E.; Maiwald, D.)
Abstract	The authors consider enhancing the performance of the traditional linear partial-response (PR) equalizer by using noise prediction techniques. The resulting noise-predictive PR equalizer consists of a forward linear PR equalizer followed by a linear predictor to whiten the noise and the residual distortion at the equalizer output. Assuming correct decisions and applying results from prediction theory, it is shown that the minimum mean-square error of a noise-predictive PR equalizer equals that of a decision-feedback equalizer which employs no PR shaping. This result shows that the performance of a receiver with a PR shaping equalizer can always be improved by attaching a noise-whitening predictor. Simulation results are presented for channels typically encountered in wire transmission and magnetic recording, i.e., channels with a spectral null at DC and strong high-frequency attenuation. The results show a substantial performance improvement when a noise-predictive PR equalizer is used.<>
Starting Page	942
Ending Page	947
File Size	506188
Page Count	6
File Format	PDF
ISBN	078030599X
DOI	10.1109/ICC.1992.268073
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1992-06-14
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise shaping Decision feedback equalizers Magnetic noise Viterbi algorithm Detectors Shape Wire Magnetic recording Prediction theory Joining processes
Content Type	Text
Resource Type	Article

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