2001
DOI: 10.1109/18.910594
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Probability propagation and decoding in analog VLSI

Abstract: Abstract-The sum-product algorithm (belief/probability propagation) can be naturally mapped into analog transistor circuits. These circuits enable the construction of analog-VLSI decoders for turbo codes, low-density parity-check codes, and similar codes.

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Cited by 129 publications
(50 citation statements)
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“…As we know, practical implementations of the iterative‐based decoding algorithms is done in parallel way . So the effect of the multiplicative correction factor can be applied on the BP decoding circuits using a scale transistor . Also, the effect of the additive factor can be applied to the calculations by adding a few AND/OR logical gates to the BP decoding circuits.…”
Section: Simulation Resultsmentioning
confidence: 99%
“…As we know, practical implementations of the iterative‐based decoding algorithms is done in parallel way . So the effect of the multiplicative correction factor can be applied on the BP decoding circuits using a scale transistor . Also, the effect of the additive factor can be applied to the calculations by adding a few AND/OR logical gates to the BP decoding circuits.…”
Section: Simulation Resultsmentioning
confidence: 99%
“…The term "probabilistic computing" has multiple meanings [11,28,50,72,88,90,137]. Different methodologies are used in designing devices and systems for probabilistic computing.…”
Section: Probabilistic Techniques and Modelsmentioning
confidence: 99%
“…BJT-based Gilbert cells [7] are used to perform the LLR-toprobability conversion, the multiplication and the addition on the probabilities. This simple sum-product circuit was demonstrated in [8] for any field of probability and has been used in a number of analog decoders [9]. For instance, in Fig.…”
Section: A Sum-product Nodesmentioning
confidence: 99%