摘要
为了提高通用战术数据链的信道纠错能力,同时降低编译码时延,设计了一种RS码与LDPC码的交织迭代编译码方案。该方案通过RS码与LDPC码的交织编码,有效地提高码字相关性;通过RS码硬判决译码和联合迭代软译码相结合,能在保证译码性能前提下降低译码时延。仿真结果表明,该方案在一定译码时延下,明显提高译码性能。
In order to improve the channel error correcting capacity of tactical data link and reduce decoding delay,a new concatenating method for RS codes and LDPC codes is proposed,which is presented by interleaving encoding and iterative decoding.A technique of interleaving encoding is adapted to enhance their relativity,at the same time,a combination of hard decision decoding for RS codes and iterative soft decision decoding is employed to guarantee sufficient decoding capability with lower decoding delay.Simulation results show that this method can obtain significant performance with proper decoding delay.
出处
《科学技术与工程》
北大核心
2013年第34期10328-10331,共4页
Science Technology and Engineering
基金
陕西省重点实验室重点基金(2011.ZD01)资助
关键词
RS码
LDPC码
交织编码
迭代译码
Reed-Solomon codes
LDPC codes
interleaving encoding
iterative decoding
