Algebraic Constructions of Quasi-Cyclic LDPC Codes Based on Prime Fields

被引：0
|
作者：
Zhang, Rui [1 ]
Kang, Guixia [1 ]
Zhang, Ningbo [1 ]
Liu, Xiaoshuang [1 ]
Wu, Hao [2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Key Lab Univ Wireless Commun, Beijing 100876, Peoples R China
[2] TGLD Informat Ctr, Beijing 100876, Peoples R China
来源：
2015 IEEE 81ST VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2015年
关键词：
Array dispersion; base matrix; circulant permutation matrix (CPM); LDPC codes; quasi-cyclic codes; PARITY-CHECK CODES;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
On dispersing different base matrices combined with masking, different kinds of quasi-cyclic low-density parity-check (QC-LDPC) codes are constructed, which may achieve good error performances. Two new algebraic constructions of regular QC-LDPC codes are presented in this paper. The two constructions are based on two base matrices by dispersing and masking. The two base matrices are based on the generators of the cyclic group of a prime field. Results show that the two classes of codes presented in this paper perform well with iterative decoding over AWGN channel and have advantages over MacKay codes in some aspects of code performances. We find that one of the constructed codes converges very fast with iterative decoding, which is a critical property in ultra-high throughput communication systems.
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页数：5
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