FLCA: A Flexible Coding Approach Through 5G NR LDPC Codes

被引：0
|
作者：
Jiang, Ming [1 ,2 ]
Wang, Ying [1 ]
Lyu, Yanchen [1 ]
Zhang, Yifan [1 ]
Xu, Xiaodong [3 ]
Hu, Nan [3 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
[2] Purple Mt Labs, Nanjing 211111, Peoples R China
[3] China Mobile Res Inst, Inst Wireless & Terminal Technol, Beijing 100053, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2024年 / 28卷 / 01期
基金：
中国国家自然科学基金;
关键词：
5G mobile communication; Parity check codes; Encoding; Decoding; Standards; Quadrature amplitude modulation; Simulation; 5G new radio; QC-LDPC codes; lifting factor; multi-lengths;
D O I：
10.1109/LCOMM.2023.3336900
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This letter proposes a flexible coding approach (FLCA) for quasi-cyclic low-density parity-check (QC-LDPC) codes based on the base graphs and lifting factors in 5G new radio (NR). The FLCA can achieve almost all code rates and blocklengths supported by 5G physical layer using a novel shortening method which is different from those used in 5G NR. In the proposed FLCA, the shortening patterns are optimized according to the code rates and modulation schemes, including quadrature phase shift keying, 16-ary and 64-ary quadrature amplitude modulations. Our proposed method is fully applicable to the existing LDPC codes of 5G and makes the encoding more flexible. Both the numerical thresholds of PEXIT analysis and the simulation results demonstrate that the proposed coding approach can bring noticeable performance gain over the current LDPC codes used in 5G NR.
引用
收藏
页码：9 / 13
页数：5
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