计算机工程与应用2012，Vol.48Issue(14)：109-111,3.DOI:10.3778/j.issn.1002-8331.2012.14.023
一种改进的LT码置信传播译码
Improved belief propagation decoding for LT codes
摘要
Abstract
Over the erasure channel, the performance of the belief propagation decoding algorithm of LT codes with small message length is bad. An improved belief propagation decoding algorithm is proposed, which only uses the Gaussian elimination method to confirm a few guessing bits for realizing decoding successfully after belief propagation decoding fails. The simulation results demonstrate that, compared with the belief propagation decoding, the proposed algorithm can significantly improve the decoding performance. The cost is in some added decoding time.关键词
喷泉码/LT码/置信传播译码/二进制删除信道Key words
fountain codes/ LT codes/ belief propagation decoding/ binary erasure channels'分类
信息技术与安全科学引用本文复制引用
何秀慧,蒋敏兰..一种改进的LT码置信传播译码[J].计算机工程与应用,2012,48(14):109-111,3.基金项目
浙江省自然科学基金(No.Y1091121) （No.Y1091121）
浙江省教育厅项目(No.Y201121140). （No.Y201121140）
