Flexible bit selection using turbo trellis-coded modulation
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United States of America Patent
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Jun 19, 2007
Grant Date -
Sep 26, 2002
app pub date -
Mar 18, 2002
filing date -
Mar 23, 2001
priority date (Note) -
Expired
status (Latency Note)
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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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