Method and apparatus for constellation shaping

Details Method and apparatus for constellation shaping Method and apparatus for constellation shaping

2006-06-20

2006-06-20

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Pulse amplitude modulation

C375S296000, C370S533000

Reexamination Certificate

active

07065167

ABSTRACT:
A method and apparatus is disclosed for facilitating high-speed data communication. In one embodiment a receiver is configured to include error correction coding in an interleaved environment to increase data transmission rates. In one embodiment the signal mapping scheme includes constellation shaping to reduce transmit power levels. In one embodiment 8-state Ungerboeck trellis coding is implemented with 4-dimensional PAM 10 signal mapping.

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