10 papers
Design of Outage-Limit-Approaching Protograph LDPC Codes via Generalized Rootchecks
Inki Kim, Hyuntae Ahn, Yongjune Kim +3
This paper presents a new protograph-based LDPC code design framework that simultaneously achieves full diversity over block-fading channels (BFCs) and near-capacity performance ov…
Spectral-Aligned Pruning for Universal Error-Correcting Code Transformers
Sanghyeon Cho, Taewoo Park, Seong-Joon Park +4
Universal channel decoders based on transformers-such as the Foundation Error Correction Code Transformer (FECCT)-achieve competitive decoding performance across diverse code famil…
Evolutionary BP+OSD Decoding for Low-Latency Quantum Error Correction
Hee-Youl Kwak, Seong-Joon Park, Hyunwoo Jung +2
Quantum error correction (QEC) for fault-tolerant quantum computing requires a balanced decoding solution that offers high performance, low complexity, and low latency. However, th…
Qubit-centric Transformer for Surface Code Decoding
Seong-Joon Park, Hee-Youl Kwak, Yongjune Kim
For reliable large-scale quantum computation, quantum error correction (QEC) is essential to protect logical information distributed across multiple physical qubits. Taking advanta…
5G LDPC Codes as Root LDPC Codes via Diversity Alignment
Hyuntae Ahn, Inki Kim, Hee-Youl Kwak +3
This paper studies the diversity of protographbased quasi-cyclic low-density parity-check (QC-LDPC) codes over nonergodic block-fading channels under iterative beliefpropagation de…
Neural Window Decoder for SC-LDPC Codes
Dae-Young Yun, Hee-Youl Kwak, Yongjune Kim +2
In this paper, we propose a neural window decoder (NWD) for spatially coupled low-density parity-check (SC-LDPC) codes. The proposed NWD retains the conventional window decoder (WD…