多维累加型交叉并联单奇偶校验码的性能分析

基金项目:

国家863计划(2007AA01Z288);国家杰出青年科学基金(60725105);长江学者和创新团队发展计划和高等学校创新引智计划(B08038)

详细信息

Performance Analysis of M-ACPC-SPC Codes

State Key Laboratory of Integrated Service Networks,Xidian University Xi'an 710071

摘要: 多维累加型交叉并联单奇偶校验(M-ACPC-SPC)码是一种新的纠错编码，该码具有较低的编、译码复杂度及较好的误比特率性能。推导了M-ACPC-SPC码的平均输入冗余重量枚举函数，由此提出了该码的误比特率性能上界及该码在高信噪比条件下误比特率的近似表达式，其近似结果与仿真值匹配良好。分析表明，随着交织长度及交织器数目的增加，M-ACPC-SPC码的错误平层逐渐降低，为M-ACPC-SPC码的设计提供了有效的参考依据。
- 误比特率 /
- 交叉结构 /
- 输入冗余重量枚举函数 /
- 迭代译码 /
- Turbo码
Abstract: Multiple accumulated-crossover parallel concatenated SPC (M-ACPC-SPC) codes is a class of novel error-correcting codes with low encoding/decoding complexity and good bit-error-rate (BER) performance. The average input-redundancy weight enumerating function (IRWEF) of M-ACPC-SPC codes is deduced to evaluate an upper BER bound of M-ACPC-SPC codes. An approximate formula of BER at high SNR is proposed for analyzing M-ACPC-SPC codes. Analysis show that the error floors of M-ACPC-SPC codes decrease as the growth of interleaver length and the number of interleavers.
- bit error rate /
- crossover structure /
- IRWEF /
- iterative decoding /
- Turbo codes