Method and apparatus for generating a 64 state 4-D Trellis...

Details Method and apparatus for generating a 64 state 4-D Trellis... Method and apparatus for generating a 64 state 4-D Trellis...

2003-08-20

2008-03-18

Payne, David C. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S261000, C704S242000, C714S758000, C714S792000

Reexamination Certificate

active

07346118

ABSTRACT:
A method and apparatus for encoding data bits in a DMT modulation system is provided utilizing a 64-state Trellis encoder to achieve further improvement in the achievable coding gain by employing coset partitioning, bit conversion, and constellation encoding that fit the DMT modulation. The coding gain of the new coder is around 5.63 dB, which is about 0.96 dB higher than the current Trellis coder in the DMT standard.

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International Search Report.

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