Summary
The 2018 International Symposium on Information Theory and Its Applications (ISITA2018)
2018
Session Number:Mo-PM-2-4
Session:
Number:Mo-PM-2-4.4
Exact Analysis for Error Probability of Max-Log-MAP Decoding in Sequence Dependent Channels
Tadashi Tomizuka, Riku Iwanaga, Ikuo Oka, Shingo Ata,
pp.271-275
Publication Date:2018/10/18
Online ISSN:2188-5079
DOI:10.34385/proc.55.Mo-PM-2-4.4
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Summary:
An exact analysis is presented for bit error probability of Max-Log-MAP decoding in sequence dependent channels. In the channels, an average bit error probability is derived by averaging the bit error probability of fixed sequence over all sequences, however, it causes the exponential complexity increase with a sequence length. In this paper, a new method is proposed for the averaging operation in the exact error probability analysis of Max-Log- MAP decoding. It is based on the integration of the probability density function (pdf’s) of merging path metrics at every trellis transition. An illustrative example of bit error probability is shown for 2-state intersymbol interference channels.