Flexible bit selection using turbo trellis-coded modulation

Details Flexible bit selection using turbo trellis-coded modulation Flexible bit selection using turbo trellis-coded modulation

2007-06-19

2007-06-19

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C714S792000

Reexamination Certificate

active

10098474

ABSTRACT:
An encoder structure for use in a DMT communications system, has a turbo encoder for encoding a portion of a data stream and generating a coded output. A data combiner has a first input receiving a remaining uncoded portion of the data stream and at least one further input receiving the coded output of the turbo encoder. A selector determines the portion of the data stream applied to the turbo encoder based on the data rate, latency requirement, coding gain performance and circuit complexity.

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Liang Zhang et al., “Turbo Coding for Transmission over ADSL”, Communication Technology Proceedings, 2000, WCC-ICCT 2000, International Conference, pp. 124-131.

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