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Large Girth Column-Weight Two and Three LDPC Codes
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DOI：10.1109/LCOMM.2014.2349982.png)
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摘要
En 中文
In this paper, the concept of broken diagonal pair in the chess-like square board is used to define some well-structured block designs whose incidence matrices can be considered as the parity-check matrices of some high rate cycle codes with girth 12. Interestingly, the constructed regular cycle codes with row-weights t, 3 <= t <= 20, t not equal 7, 15, 16, have the minimum lengths among the known regular girth-12 cycle codes. In addition, the proposed cycle codes can be easily extended to some high rate column weight-3 LDPC codes with girth 6. Simulation results show that the constructed non-binary cycle codes and binary QC LDPC codes have good performances over AWGN channel.
Keyword:
LDPC code
Tanner graph
girth
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期刊
IF:
4.4
论文数:
1.3W
被引数:
2.2W
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