Concatenated LDGM Codes with Reduced Decoder Complexity

We propose a design criterion for serially concatenated LDGM codes which require single decoder. The inner LDGM code can be obtained by expanding the rows of the parity check matrix of the outer LDGM code. The resulting codes can be decoded using only the inner LDGM decoder with slight modification....

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Bibliographic Details
Published in2006 IEEE 63rd Vehicular Technology Conference Vol. 3; pp. 1363 - 1366
Main Authors Joon-Sung Kim, Hong-Yeop Song
Format Conference Proceeding
LanguageEnglish
Published IEEE 2006
Subjects
Bipartite graph
Concatenated codes
Hardware
Information theory
Iterative algorithms
Iterative decoding
Linear code
Parity check codes
Sparse matrices
Turbo codes
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Summary:We propose a design criterion for serially concatenated LDGM codes which require single decoder. The inner LDGM code can be obtained by expanding the rows of the parity check matrix of the outer LDGM code. The resulting codes can be decoded using only the inner LDGM decoder with slight modification. Simulation results show that the performance of the proposed codes is almost the same as that of serially concatenated LDGM codes's using both the inner and the outer decoder
ISBN:9780780393912
0780393910
ISSN:1550-2252
DOI:10.1109/VETECS.2006.1683057