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 Tajima, Keiji Takida, Zenshiro 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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