Abstract
In this paper, we consider the problem of transmitting binary messages over data-dependent two-dimensional channels. We propose a deliberate bit flipping coding scheme that removes channel harmful configurations prior to transmission. In this method, user messages are encoded with an error correction code, and therefore the number of bit flips should be kept small not to overburden the decoder. We formulate the problem of minimizing the number of bit flips as a binary constraint satisfaction problem, and devise a generalized belief propagation guided method to find approximate solutions. Applied to a data-dependent binary channel with the set of 2-D isolated bit configurations as its harmful configurations, we evaluated the performance of our proposed method in terms of uncorrectable bit-error rate.
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Acknowledgment
This work is funded by the NSF under grants ECCS-1500170 and SaTC-1813401. A comprehensive version of this paper has been submitted to IEEE Transactions on Communications [26].
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Bahrami, M., Vasić, B. (2019). Constraint Satisfaction Through GBP-Guided Deliberate Bit Flipping. In: Ćirić, M., Droste, M., Pin, JÉ. (eds) Algebraic Informatics. CAI 2019. Lecture Notes in Computer Science(), vol 11545. Springer, Cham. https://doi.org/10.1007/978-3-030-21363-3_3
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DOI: https://doi.org/10.1007/978-3-030-21363-3_3
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