2017
DOI: 10.1109/tcsi.2016.2633581
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Efficient Hardware Implementation of Probabilistic Gradient Descent Bit-Flipping

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Cited by 28 publications
(20 citation statements)
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“…Unlike the GDBF in which the VNs that satisfy flipping condition are automatically flipped, all the flipping candidates in PGDBF are only flipped with a probability of p (0 < p < 1). Interestingly, this probabilistic behavior improves the decoding performance, far better than the original GDBF and very close to MS [14]. The evolution of BF performance improvement is shown in Fig.…”
Section: Introductionmentioning
confidence: 85%
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“…Unlike the GDBF in which the VNs that satisfy flipping condition are automatically flipped, all the flipping candidates in PGDBF are only flipped with a probability of p (0 < p < 1). Interestingly, this probabilistic behavior improves the decoding performance, far better than the original GDBF and very close to MS [14]. The evolution of BF performance improvement is shown in Fig.…”
Section: Introductionmentioning
confidence: 85%
“…This truly helps the MBF avoid VN miss-flipping and offers a considerable improvement in error correction. The GDBF and PGDBF implementations can be found in [14] and MBF is implemented in [11]. A drawback of these BF decoders is that a global operation (the Maximum Finder -MF in [14] and N-to-4 sorter in [11]) is required to identify the maximum among the VN energy values.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, we randomly disturb the state of each VNU to be able to escape from the trapping set. Of course, one may question that such disturbance could adversely affect the normal behavior of the VNU, but theoretical results indicate that this side effect does not significantly increase the number of iterations [11]. If the GaB decoder does not converge within user-defined number of (k) iterations, then we apply this probabilistic strategy (Probabilistic GaB) to escape from trapping set.…”
Section: Probabilistic Gab Algorithmmentioning
confidence: 99%
“…Moreover, the probability function can be applied to the decoder in various positions. For example, in PGDBF decoder [11] the probabilistic function is applied during the final output decision of a VNU for deciding between flipping the channel value or not. In Stochastic GaB [12], the randomness effect acts on both messages exchanged mutually between VNU and CNU.…”
Section: Probabilistic Gab Algorithmmentioning
confidence: 99%
“…In this paper, this is called the improved MWSF (IMWSF) algorithm. Since then, there have been proposals of an average probability and stopping criterion weighted symbol flipping (APSCWSF) algorithm [18,19], multiple-vote symbol flipping (MV-SF) algorithm [20,21,22] and so on [23,24]. …”
Section: Introductionmentioning
confidence: 99%