@article{M513C5205,
title = "Selective AN Code Design for Correcting Computation Errors and Mis-Decoding Detection in Process-in-Memory",
journal = "The Journal of Korean Institute of Communications and Information Sciences",
year = "2024",
issn = "1226-4717",
doi = "10.7840/kics.2024.49.1.104",
author = "Myung-in Kim, Jeong-seok Ha",
keywords = "PIM, AN codes, weight matrix, look-up-table, correctable set, mis-decoding",
abstract = "This work proposes a selective AN coding scheme for correcting errors which happen during computations in the process-in-memory devices. AN codes are error-correcting codes which encode the message data by multiplying a positive integer A to them. AN codes correct errors by mapping the division remainders of the erroneous coded data divided by A to the error patterns in the look-up-table. This paper proposes an AN coding scheme which selectively determines different error-correcting capabilities according to the significancy of computational results. At first, the proposed work defines the set of bit-lines with high significance as the correctable set. Then, it identifies conditions which ensure the correction and the mis-decoding detection for the error patterns inside and outside of the correctable set, respectively. The proposed AN coding scheme enables more flexible code design for a given noisy environment compared to the existing static AN coding scheme.
Additionally, in terms of the storage capacity, a more efficient decoder implementation is possible compared to the ABN coding scheme which is known suitable for flexible code design."
}