A Class of Structured Quasi-Cyclic LDPC Codes Based on Planar Difference Families

被引：0
|
作者：
Ibraheem, Shady M. [1 ]
Abd Elrazzak, M. M. [1 ]
Eldin, Salwa M. Serag [2 ]
Saad, W. [3 ]
Aboelazin, Atef E. [3 ]
机构：
[1] Mansoura Univ, Fac Engn, Dep Commun Engn, Mansoura, Egypt
[2] Tanta Univ, Fac Engn, Dep Com Engn, Tanta, Egypt
[3] Meoufiya Univ, Fac Elect Engn, Dept Commun Engn, Menoufia, Egypt
来源：
2013 INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES FOR COMMUNICATIONS (ATC) | 2013年
关键词：
LDPC codes; quasi-cyclic codes; planar difference family; girth; minimum distance;
D O I：
暂无
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 paper is devoted to introduce a special classes of (QC-LDPC) with very restricted code parameters based on planar difference families. Such difference families could be obtained by numerical analysis and computer programs. The resulting codes have parity check matrices with column-weight greater than three, at least no 4-cycle and approximately full rank It can be noted that the construction based on planar difference families exhibits more flexibility than that based on difference sets in terms of length and code rate selections. Besides, the more increasing in the column-weights of parity check matrices of QC-LDPC codes, the more improvement in the minimum distances of them. Simulation results show that over the additive white Gaussian noise channel, these codes could outperform their randomly constructed counterparts.
引用
收藏
页码：614 / 619
页数：6
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