Treillis precoding for fractional bits/baud

Details Treillis precoding for fractional bits/baud Treillis precoding for fractional bits/baud

H - Electricity

03

M

H03M 7/00 (2006.01) H03M 13/25 (2006.01) H04L 25/03 (2006.01) H04L 27/34 (2006.01)

Patent

CA 2058450

A digital data sequence is mapped into a signal point sequence e(D) for data transmission over a channel h(D) (40) to produce a channel output sequence y(D)=e(D)h(D), e(D) is chosen so that the signal points in the sequence y(D) belong to a class of possible sequences based on the digital data sequence, the class being based on a time-varying treillis code derived from an N-dimensional time-invariant treillis code (44) by using different transformed versions of its underlying lattices for respectively different N-dimensional symbols.

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