On maximum-length linear congruential-sequences-based low-density parity-check codes

被引:2
作者
Sun, J [1 ]
Takeshita, OY
机构
[1] Qualcomm Inc, San Diego, CA 92121 USA
[2] Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA
基金
美国国家科学基金会;
关键词
error-correction coding; graph theory; low-density parity-check (LDPC) codes; permutation; sequences;
D O I
10.1109/TCOMM.2005.860093
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter extends a low-density parity-check code construction using maximum-length linear congruential sequences by Prabhakar and Narayanan. The corresponding bipartite graphs of their construction were guaranteed to have a girth larger than four by a sufficient condition. However, their sufficient condition was limited to regular codes and data-node degree equal to three. The extension in this letter allows arbitrary data-node degrees and is applicable to irregular codes. Further, simpler sufficient conditions are derived and larger girths are addressed.
引用
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页码:1977 / 1980
页数:4
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