基于LDPC码的数字喷泉编码
doi: 10.3724/SP.J.1146.2006.01505
Digital Fountain Base on LDPC Code
-
摘要: 数字喷泉是近年发展起来的一类基于删除信道、面向数据分组的前向纠错编码技术,在广播类传输中具有明显的效率优势。该文提出了一种基于LDPC码的数字喷泉编解码方案,仿真结果表明,与已有的同类数字喷泉编解码算法相比,基于LDPC码的数字喷泉编解码算法具有更好的纠错性能和较低的编解码复杂度。Abstract: Digital fountain is a packet oriented forward error correction technology for channels with erasures, which has obvious efficiency advantage in broadcast. In the paper, LDPC code is put into practice in digital fountain encoding, and a fast decoding algorithm is presented. The simulation show that the digital fountain scheme base on LDPC code has better error correcting performance and can be implemented with very low complexity to encode and decode.
计量
- 文章访问数: 3610
- HTML全文浏览量: 91
- PDF下载量: 1448
- 被引次数: 0