A generalized precompiling scheme for surviving path memory management in Viterbi decoders

Key words: VLSI, Viterbi algorithm, Trace-Back, Exchange Register

Abstract:

The management of the surviving path memory in Viterbi's algorithm is generally performed by Trace-Back or Exchange.Register. A generalized method using precompiled trace-backs is presented. Resolution by a graphical method is proposed and three examples are solved.

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Authors: Emmanuel Boutillon, Nicolas Demassieux

Reference: ISCAS'93, IEEE, vol. 3, pp. 1579-82, New-Orleans, May 1993.