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Exact analysis of bit error probability for 4-state soft decision Viterbi decoding

Hirofumi Yoshikawa, Ikuo Oka, Chikato Fujiwara

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Abstract

Although Viterbi decoding is widely used in practical systems, only a few studies have been made for the exact error performance. We already proposed analytical technique for a 2-state soft decision Viterbi decoding. In this paper, this technique is extended to bit error probability for 4-state soft decision Viterbi decoding. This employs an iterative calculation of probability density function (PDF) of the path metrics.

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What this paper is about

Although Viterbi decoding is widely used in practical systems, only a few studies have been made for the exact error performance. We already proposed analytical technique for a 2-state soft decision Viterbi decoding. In this paper, this technique is extended to bit error probability for 4-state soft decision Viterbi decoding. This employs an iterative calculation of probability density function (PDF) of the path metrics.

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OpenAlex reports 12 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Although Viterbi decoding is widely used in practical systems, only a few studies have been made for the exact error performance. We already proposed analytical technique for a 2-state soft decision Viterbi decoding. In this paper, this technique is extended to bit error probability for 4-state soft decision Viterbi decoding. This employs an iterative calculation of probability density function (PDF) of the path metrics.

Key concepts: Iterative Viterbi decoding, Soft output Viterbi algorithm, Viterbi algorithm, Viterbi decoder, Sequential decoding, Decoding methods, Computer science, Algorithm

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