Proceedings of the ISCIE International Symposium on Stochastic Systems Theory and its Applications
Online ISSN : 2188-4749
Print ISSN : 2188-4730
The 29th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (Nov. 1997, Tokyo)
Symbol Reliability Estimation Using the Bidirectional Viterbi Decoding Algorithm
Masato TajimaKeiji TakidaZenshiro Kawasaki
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1998 Volume 1998 Pages 285-290

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Abstract
In this paper, we first review the Soft-BIVA based on the bidirectional Viterbi algorithm (BIVA). Next, we apply the Soft-BIVA to QLI codes under the assumption that a Scarce State Transition Viterbi decoder is used. Then the symbol reliability values are derived by applying the Soft-BIVA to the main decoder. Moreover, it is shown that in the case of QLI codes, the symbol reliability is also obtained using bidirectional syndrome decoding in the syndrome trellis.
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© 1998 ISCIE Symposium on Stochastic Systems Theory and Its Applications
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