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An Encoder with Speed over 40Gbps for RC LDPC Codes with Rates Up to 0.96

文献类型：期刊论文

作者He Zhiyong; Cui Wenjuan; Xu Hushan; Zhao Qiang; Luo Yuxi
刊名CHINESE JOURNAL OF ELECTRONICS
出版日期2016-09-01
卷号25页码:921-927
关键词Low-density parity-check codes (LDPC) High-speed encoder Field programmable gate array (FPGA) implementation
ISSN号1022-4653
DOI10.1049/cje.2016.06.039
英文摘要We propose a class of Rate-compatible (RC) Low-density parity-check (LDPC) codes with a very wide range of code rates. To widen the range of rates, we have developed an optimal transmission scheme to push the upper bound of code rates to 0.96. Characterized by a parity check matrix in a dual-diagonal form, the proposed RC LDPC code can be encoded in linear time. Constructed from shifted identity sub-matrices, the proposed codes are particularly well-suited for the high-speed implementation of parallel encoders. Furthermore, the encoder can be implemented efficiently with several left circular shifters and XOR gates. To maximize the encoding speed, we have proposed a q-parallel encoder architecture, where q is the size of each sub-matrix. The implementation results into Field programmable gate array (FPGA) devices indicate that a 72-parallel encoder for the proposed RC LDPC code with a code rate from 0.5 to 0.96 is capable of reaching a speed of 42 Gigabits per second (Gbps) using a clock frequency of 300MHz.
WOS关键词PARITY-CHECK CODES ; COLUMN DECODING ALGORITHM ; PUNCTURING SCHEME ; ERROR FLOOR ; DESIGN
WOS研究方向Engineering
语种英语
WOS记录号WOS:000382906000018
出版者TECHNOLOGY EXCHANGE LIMITED HONG KONG
源URL[http://119.78.100.186/handle/113462/43351]  
专题近代物理研究所_实验物理中心
通讯作者He Zhiyong
作者单位Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 He Zhiyong,Cui Wenjuan,Xu Hushan,et al. An Encoder with Speed over 40Gbps for RC LDPC Codes with Rates Up to 0.96[J]. CHINESE JOURNAL OF ELECTRONICS,2016,25:921-927.
APA He Zhiyong,Cui Wenjuan,Xu Hushan,Zhao Qiang,&Luo Yuxi.(2016).An Encoder with Speed over 40Gbps for RC LDPC Codes with Rates Up to 0.96.CHINESE JOURNAL OF ELECTRONICS,25,921-927.
MLA He Zhiyong,et al."An Encoder with Speed over 40Gbps for RC LDPC Codes with Rates Up to 0.96".CHINESE JOURNAL OF ELECTRONICS 25(2016):921-927.

入库方式： OAI收割

来源：近代物理研究所

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