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An Efficient FEC Encoder Core for VCM LEO Satellite-Ground Communications
Alternative TitleWOS:000554573700001;20203108998939
Kang, Jing1; An, Jun She; Wang, Bingbing1
Source PublicationIEEE ACCESS
2020
Volume8Pages:125692-125701
DOI10.1109/ACCESS.2020.3007923
ISSN2169-3536
Language英语
KeywordFEC encoder LDPC BCH VCM satellite-ground communications FPGA DVB-S2
AbstractA powerful forward error correction (FEC) scheme based on the serial concatenation of Bose-Chaudhuri-Hocquenghen (BCH) and low-density parity-check (LDPC) codes has been adopted by the second generation digital video broadcast (DVB-S2) standard due to their near Shannon limit performance. This paper proposes an efficient FEC encoder core to support different DVB-S2 codes for variable coding modulation (VCM) schemes of low earth orbit (LEO) satellite-ground communications. By exploring the properties of different concatenated BCH-LDPC codes and reusing the computation units and memories, the compatibility is achieved and the utilization of hardware resources is improved. Besides, parallel computing is performed to speed up the acquisition of check bits, which allows the encoding throughput to be increased. Hardware architecture implementation on Xilinx XC7K325t field programmable gate array (FPGA) shows that the encoding throughput rate of the proposed FEC encoder core can reach 1.19 Gb/s. And the overall data throughput is improved by 30.9% compared with the constant coding modulation (CCM) schemes.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7656
Collection中国科学院国家空间科学中心
Affiliation1.Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Elect & Informat Technol Space Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Comp Sci & Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Kang, Jing,An, Jun She,Wang, Bingbing. An Efficient FEC Encoder Core for VCM LEO Satellite-Ground Communications[J]. IEEE ACCESS,2020,8:125692-125701.
APA Kang, Jing,An, Jun She,&Wang, Bingbing.(2020).An Efficient FEC Encoder Core for VCM LEO Satellite-Ground Communications.IEEE ACCESS,8,125692-125701.
MLA Kang, Jing,et al."An Efficient FEC Encoder Core for VCM LEO Satellite-Ground Communications".IEEE ACCESS 8(2020):125692-125701.
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