Rate-Adaptive Concatenated Multi-Level Coding With Novel Probabilistic Amplitude Shaping
نویسندگان
چکیده
This paper proposes a new probabilistic amplitude shaping (PAS) approach for concatenated two-level multi-level coding (MLC). The proposed system is based on forward error correction (FEC) scheme where outer codes are serially with inner MLC. MLC has recently been shown to have potential achieving better performance-complexity trade-offs than the conventional bit-interleaved coded modulation (BICM). Meanwhile, PAS demonstrated offer remarkable performance gains as well rate adaptivity. However, majority of existing works assume use binary reflected Gray code bit-labeling, and its application schemes other bit-labelings, such MLC, may not be straightforward. In this paper, we devise bit-labeling propose structure an efficient integration systems. More specifically, generate signed symbols distribution matcher (DM) maximizing both achieved by PAS, respectively, while generates xmlns:xlink="http://www.w3.org/1999/xlink">unsigned symbols. It simulation results that, 256QAM polar codes, simultaneously offers 75% reduction in number required encoding soft-decision (SD) decoding operations given FEC lengths, up 0.3 dB gain over scheme.
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ژورنال
عنوان ژورنال: IEEE Transactions on Communications
سال: 2022
ISSN: ['1558-0857', '0090-6778']
DOI: https://doi.org/10.1109/tcomm.2022.3162365