Block-circulant low-density parity-check codes for optical communication systems

被引：41
作者：
Milenkovic, O [1 ]
Djordjevic, IB
Vasic, B
机构：
[1] Univ Colorado, Dept Elect & Comp Engn, Boulder, CO 80303 USA
[2] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85719 USA
来源：
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 2004年 / 10卷 / 02期
基金：
美国国家科学基金会;
关键词：
cycle-invariant difference sets; forward error correction; low-density parity-check codes; optical communications;
D O I：
10.1109/JSTQE.2004.827832
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：
A novel family of structured low-density parity-check (LDPC) codes with block-circulant parity-check matrices that consist of permutation blocks is proposed. The codes from this family are based on new combinatorial objects termed cycle-invariant difference sets, and they have low storage requirements, fast encoding algorithms, and girth of at least six. Most importantly, they tend to outperform many other known structured LDPCs of comparable rate and length.
引用
收藏
页码：294 / 299
页数：6
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