RADIX-4 VITERBI FORWARD ERROR CORRECTION DECODING

摘要

A method for forward error correction decoding. The method generally includes steps (A) to (D). Step (A) may calculate a plurality of metrics of a codeword using a forward error correction process on a trellis having a plurality of stages. Step (B) may update the metrics over each of the stages. Step (C) may permute the metrics in each of the stages. Step (D) may generate a signal carrying a plurality of decoded bits of the codeword.

主权项

1. A method for forward error correction decoding, comprising the steps of:
(A) calculating a plurality of metrics of a codeword using a forward error correction process on a trellis having a plurality of stages; (B) updating said metrics over each of said stages; (C) permuting said metrics in each of said stages; (D) writing said metrics as permuted into a memory; and (E) generating a signal carrying a plurality of decoded bits of said codeword based on said metrics in said memory.