Title: An effective simplifying scheme for Viterbi decoder
Abstract:A Viterbi decoding algorithm with a scarce-state transition-type circuit configuration, namely the probability selecting states (PSS) mode decoder, is presented. The algorithm has reduced complexity c...A Viterbi decoding algorithm with a scarce-state transition-type circuit configuration, namely the probability selecting states (PSS) mode decoder, is presented. The algorithm has reduced complexity compared to a conventional Viterbi decoder. It is shown that this method has three advantages over the general Viterbi algorithm: it is suitable to the quick look-in code, it applies the optimum decoding in a PSS-type decoder, and it makes full use of the likelihood concentration property. The bit-error-rate (BER) performance of a r=1/2, k=7 (147,135) code and PSS-type Viterbi decoder approximates the optimum performance of the standard Viterbi decoder and reduces the hardware of the conventional Viterbi decoder to about half.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>Read More
Publication Year: 1991
Publication Date: 1991-01-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 13
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