High bit rate digital subscriber line transmission with noise-predictive decision-feedback equalization and block coded modulation

David W. Lin*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The author presents a proposal for solving the problem of reduced performance of coded modulation due to colored channel noise by whitening the noise with an added noise predictor in the decision-feedback equalizer (DFE) This also has the benefit of increasing the nominal SNR. The resulting equalizer has a structure encompassing as a special case the noise-predictive DFE proposed earlier by others. Several numerical examples are provided to illustrate the digital subscriber line transmission performance with the new noise-predictive DFE. It is shown that the added noise predictor improves the transmission performance in two ways: first, it decorrelates the noise, and second, it decreases the noise power by its prediction gain.

Original languageEnglish
Pages (from-to)531-535
Number of pages5
JournalConference Record - International Conference on Communications
Volume1
StatePublished - 1 Dec 1989
EventIEEE International Conference on Communications - ICC'89 - Boston, MA, USA
Duration: 11 Jun 198914 Jun 1989

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