Back

gr‑lazyviterbi

Module Info

This module contains a single block which is a drop-in replacement for the Viterbi block of gr-trellis. It implements the Viterbi algorithm for decoding or equalization in the way described in Feldman, Jon & Abou-Faycal, Ibrahim & Frigo, Matteo. (2002). A Fast Maximum-Likelihood Decoder for Convolutional Codes. Vehicular Technology Conference, 1988, IEEE 38th. 10.1109/VETECF.2002.1040367.

This implementation provides a significant speedup at moderate SNRs, but is slower at low SNR.