DocumentCode
2275743
Title
A class of quasi-cyclic regular LDPC codes from cyclic difference families with girth 8
Author
Fujisawa, Masaya ; Sakata, Shojiro
Author_Institution
Tokyo Univ. of Sci.
fYear
2005
fDate
4-9 Sept. 2005
Firstpage
2290
Lastpage
2294
Abstract
In this paper, we propose a class of regular LDPC codes from a cyclic difference family, which is a kind of combinatorial design. These LDPC codes have no 4-cycles, i.e., cycles of length 4. We clarify the conditions on which these codes with column weight 3 have no 6-cycles and discuss their minimum distance. Finally, we show the performance of the proposed codes with high rates and moderate lengths
Keywords
cyclic codes; parity check codes; cyclic difference family; girth 8; low density parity check codes; quasi-cyclic regular LDPC codes; Bipartite graph; Iterative decoding; Magnetic recording; Optical fiber communication; Parity check codes; Sum product algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2005. ISIT 2005. Proceedings. International Symposium on
Conference_Location
Adelaide, SA
Print_ISBN
0-7803-9151-9
Type
conf
DOI
10.1109/ISIT.2005.1523756
Filename
1523756
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