TY  - JOUR
T1  - IHDD-GRAND Algorithm for Decoding Symmetric Block-Wise Concatenated BCH Codes
AU  - Gabriel
AU  - Ha, Jeongseok 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2024
DA  - 2024/1/1
DO  - 10.7840/kics.2024.49.3.365
KW  - BCH codes
KW  - symmetric block-wise concatenation
KW  - GRAND algorithm
KW  - hard-decision decoder
AB  - Block-wise concatenated Bose-Chaudhuri-Hocquenghem (BC-BCH) codes are shown to have excellent error-correcting capability under hard-decision decoding. The variant of BC-BCH codes, namely symmetric BC-BCH (SBC-BCH) codes, is later introduced to improve the error-correcting performance of BC-BCH codes. In this work, we propose a new hard-decision algorithm, IHDD-GRAND, which aims to further enhance the error-rate of SBC-BCH codes.
The proposed algorithm uses GRAND as an auxiliary decoder for the IHDD, and it can be efficiently implemented by utilizing the error-confinement property of SBC-BCH codes. It will be shown that the proposed algorithm significantly improves the error-correcting performance of SBC-BCH codes.