@inproceedings{e6e85062514d4de4a8457107d19823c8,
title = "Adaptive Symbol Mapping for QC-LDPC Coded BICM HARQ Systems",
abstract = "This paper presents an analysis of the asymptotic performance of bit-interleaved coded modulation (BICM) with hybrid automatic repeat and request (HARQ) systems employing quasi-cyclic low-density parity-check (QC-LDPC) codes. To enhance the BICM-HARQ systems, we propose a modified reciprocal channel approximation density evolution (RCA-DE) algorithm, which approximates the M-ary input channel with HARQ combining to log2 M parallel binary-input white Gaussian noise channels (BI-AWGNCs). A practical application of the proposed RCA-DE technique involves investigating bit-level mapping and modulation for a wide range of code lengths, rates, and modulation orders. Numerical results show that up to 4.8 dB gain is achieved by the mapping designed using the proposed RCA-DE, compared to the original fifth-generation (5G) New Radio (NR) system. Furthermore, our numerical results demonstrate a strong correlation between the simulation and analysis results, validating the effectiveness of the proposed RCA-DE approach for practical system implementation.",
keywords = "5G New Radio, HARQ, QC-LDPC codes, RCA-DE, protograph, protograph HARQ ensemble",
author = "Hongsil Jeong and Min Jang and Seho Myung and Kim, \{Kyung Joong\} and Ahn, \{Seok Ki\} and Kim, \{Sang Hyo\}",
note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE Globecom Workshops, GLOBECOM Workshop 2023 ; Conference date: 04-12-2023 Through 08-12-2023",
year = "2023",
doi = "10.1109/GCWkshps58843.2023.10464817",
language = "English",
series = "2023 IEEE Globecom Workshops, GC Wkshps 2023",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1249--1254",
booktitle = "2023 IEEE Globecom Workshops, GC Wkshps 2023",
}