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Direct-Transpose Architecture-Aided Joint Coding-Synchronization Schemes for DNA Data Storage
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DOI：10.1109/lcomm.2026.3708460.png)
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Abstract
En 中文
DNA data storage faces insertion, deletion, and substitution (IDS) errors arising from biochemical processes, where insertion and deletion errors (i.e., synchronization errors) induce position offset issues. To address these challenges, we propose a direct-transpose marker coding (DMC) scheme, which integrates low-density parity-check (LDPC) codes with marker codes using a direct-transpose architecture. Also, a synchronization-anchor generating iterative decoding (SAGID) algorithm is developed to recover data, where successfully decoded codewords serve as high-confidence synchronization anchors to enhance error correction. To further reduce marker redundancy, we propose a direct-transpose dual-rate LDPC coding (DDLC) scheme that replaces markers with low-rate LDPC codewords. Simulation results demonstrate that both DMC and DDLC outperform conventional marker code (MC) and embedded marker code (EMC) schemes at a code rate of 0.82, with DDLC exhibiting superior performance for shorter DNA sequences.
Keywords:
DNA data storage
marker codes
low-density parity-check (LDPC) codes
insertion/deletion/substitution (IDS) channel
direct-transpose architecture
Journal
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4.4
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1.3W
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2.2W