DocumentCode
2940260
Title
Algebraic Constructions of Nonbinary Quasi-Cyclic LDPC Codes
Author
Song, Shumei ; Zeng, Lingqi ; Lin, Shu ; Abdel-Ghaffar, Khaled
Author_Institution
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA
fYear
2006
fDate
9-14 July 2006
Firstpage
83
Lastpage
87
Abstract
This paper presents three algebraic methods for constructing nonbinary quasi-cyclic (QC)-LDPC codes. Three classes of efficiently encodable QC-LDPC codes over nonbinary finite fields are constructed. Experimental results show that constructed codes decoded with iterative decoding perform well over the AWGN channel and they achieve significant coding gains over Reed-Solomon (RS) codes of the same lengths and rates decoded with algebraic decoding
Keywords
AWGN channels; Reed-Solomon codes; algebraic codes; channel coding; iterative decoding; parity check codes; AWGN channel; Reed-Solomon codes; algebraic constructions; algebraic decoding; iterative decoding perform; nonbinary finite fields; nonbinary quasi-cyclic LDPC codes; AWGN channels; Binary codes; Galois fields; Iterative decoding; Null space; Parity check codes; Performance gain; Quantum cascade lasers; Reed-Solomon codes; Sum product algorithm;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Theory, 2006 IEEE International Symposium on
Conference_Location
Seattle, WA
Print_ISBN
1-4244-0505-X
Electronic_ISBN
1-4244-0504-1
Type
conf
DOI
10.1109/ISIT.2006.261679
Filename
4035926
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