摘要
介绍了Turbo码的编码和译码原理,分析了迫零比特对于Turbo码的性能的影响,介绍了目前常用的几种迫零方式,并且通过仿真对迫零比特对于Turbo码的性能影响进行了研究。仿真结果表明,Turbo码编码器迫零处理有助于改善Turbo码的性能。
This paper introduced the coding and decoding principles of multidimensional turbo codes(MTC),presented a decoder structure for M TC,based on MAP algorithm.Then we studied the perfor-mance of MTC,compared MTC with two di mensional turbo codes.Simulation r esult showed that MTC might achieve better performance th an two dimensional turbo codes.
出处
《通信技术》
2001年第9期5-7,共3页
Communications Technology
关键词
TURBO码
迭代译码
误比特率
迫零方案
信道编码
turbo codes,iterative decoding,bi t error rate,parallel concatenated convolutional codes
