Trellis precoding for modulation systems

Pulse or digital communications – Repeaters – Testing

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371 43, H04L 2534

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active

051596105

ABSTRACT:
In general the invention features mapping a digital data sequence into a signal point sequence for data transmission over a channel characterized by a non-ideal response, by selecting the signal point sequence from a subset of all possible signal point sequences based on the digital data sequence and upon the response, all possible signal point sequences in the subset lying in a fundamental region of a filtered trellis code, the fundamental region being other than a simple Cartesian product of finite-dimensional regions.

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