Institute of Computing Technology, Chinese Academy IR
Construction of Multi-Rate Quasi-Cyclic LDPC Codes for Satellite Communications | |
Zhang, Chong1,2; Mu, Xijin1,2,3; Yuan, Jinhong4; Li, Huaan5; Bai, Baoming5 | |
2021-11-01 | |
发表期刊 | IEEE TRANSACTIONS ON COMMUNICATIONS |
ISSN | 0090-6778 |
卷号 | 69期号:11页码:7154-7166 |
摘要 | To provide reliable transmissions with flexible rates for satellite communications, this paper presents a novel method of constructing multi-rate quasi-cyclic low-density parity-check (LDPC) codes. The basic idea is to generate low-rate codes from a high-rate mother code by combining shortening and extending, which ensures that the generated code family owns the same code length, in order to maintain the same frame structure. The code construction involves the design of base matrices and exponent matrices for the designed codes. A progressive row elimination and addition algorithm is proposed for designing the code base matrices from a high rate to low rates. This algorithm leads to the nested and systematic structure of the parity-check matrices, which are desirable for practical implementations of their encoders and decoders, while ensuring the optimal decoding thresholds. In addition, we construct a circulation coefficient matrix based on finite fields and select the optimal rows in this matrix to construct exponent matrices while considering of cycle structures. We demonstrate that the designed codes achieve better performance for all the code rates than the LDPC codes in DVB-S2X standards. In addition, the proposed codes do not exhibit error floors for their block error rates down to 10(-5). |
关键词 | Parity check codes Decoding Satellite broadcasting Wireless communication Systematics 5G mobile communication Standards Satellite communications channel coding LDPC |
DOI | 10.1109/TCOMM.2021.3107578 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[61901453] ; National Natural Science Foundation of China[61771364] ; CAS HongGuang Project[KFJ-HGZX-002] ; CAS Pioneer Hundred Talents Program - China Postdoctoral Science Foundation[2019M650855] |
WOS研究方向 | Engineering ; Telecommunications |
WOS类目 | Engineering, Electrical & Electronic ; Telecommunications |
WOS记录号 | WOS:000719563500006 |
出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.204/handle/2XEOYT63/18092 |
专题 | 中国科学院计算技术研究所期刊论文_英文 |
通讯作者 | Yuan, Jinhong |
作者单位 | 1.Chinese Acad Sci, Inst Comp Technol, Beijing Key Lab Mobile Comp & Pervas Device, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Nanjing Mobile Commun & Comp Innovat Inst ICT, Nanjing 210000, Peoples R China 4.Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia 5.Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Chong,Mu, Xijin,Yuan, Jinhong,et al. Construction of Multi-Rate Quasi-Cyclic LDPC Codes for Satellite Communications[J]. IEEE TRANSACTIONS ON COMMUNICATIONS,2021,69(11):7154-7166. |
APA | Zhang, Chong,Mu, Xijin,Yuan, Jinhong,Li, Huaan,&Bai, Baoming.(2021).Construction of Multi-Rate Quasi-Cyclic LDPC Codes for Satellite Communications.IEEE TRANSACTIONS ON COMMUNICATIONS,69(11),7154-7166. |
MLA | Zhang, Chong,et al."Construction of Multi-Rate Quasi-Cyclic LDPC Codes for Satellite Communications".IEEE TRANSACTIONS ON COMMUNICATIONS 69.11(2021):7154-7166. |
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