In this paper, we propose a two-stage belief-propagation ordered statistics decoding (BP-OSD)-like algorithm, hereafter referred to as BP-LCGCD, tailored to 5G low-density parity-check (LDPC) codes. When standard BP decoding fails, a modified BP (mBP) with an iteration limit determined by the code’s girth and a normali...
Qian-Fan Wang, Yi-Wen Wang, Jia-Yi Yang et al.· IEEE Transactions on Communi...· 0 citations
In this paper, we propose free-ride BCH (FR-BCH) codes to enable fine-grained rate adaptation on conventional BCH codes. At the transmitter, a small number of extra bits are superimposed onto the BCH codeword via random or structured superpositions. At the receiver, all candidate extra-bit patterns are enumerated by a...
Qian-Fan Wang, Yi-Wen Wang, Ji-Fan Liang et al.· IEEE Transactions on Communi...· 0 citations
Channels with memory commonly introduce intersymbol interference (ISI), which complicates reliable coded transmission. For such channels, this paper develops a fitted extrinsic-information-transfer (EXIT) framework for LDPC code design with iterative detection and decoding. The soft-input soft-output (SISO) detector is...
Qian-Fan Wang, Jia-Yi Yang, Shuang-Yang Li et al.· 2026 IEEE/CIC International...· 0 citations
The framework developed in this paper can serve as an algorithmic building block for QEC-aware routing under logical-error and logical-lifetime constraints and reduces single-flow average routing cost and multi-flow throughput-normalized congestion by approximately 28--31\% over Greedy-Assignment.
Yuanbo Zhang, Qian-Fan Wang, Yang-Min Zhao et al.· 0 citations
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