摘要
短长度圈的存在会对LDPC码的译码算法性能产生重要影响,因此研究了一种易于实现的扩展比特填充算法,用于构造高girth的LDPC码,并对其构造的不同girth的码字进行了仿真,通过性能的分析比较,证实增大girth约束值可以较大地改善码字性能。
In this paper, a simple-to-implement algorithm,namely,extended bit-filling,is presented for constructing high girth LDPC codes. The performance of codes which are constructed by this algorithm and have different girth is compared throughsimulation.The reoults demonstrate the positive effect of girth improving on performance.
出处
《重庆邮电学院学报（自然科学版）》
2004年第3期22-25,共4页
Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)
基金
国家"863"高新技术基金资助项目(2002AA123046)
