摘要
不同于传统的Turbo码,该文基于扩展咬尾递归系统卷积码(extended tail Biting recursive systematic,ETB-RSC)的思想,提出了一种并行的扩展咬尾Turbo码(parallel extended tail biting turbo code,PE-TBTC),它通过将接收序列分为若干子序列并行译码来显著提高译码速率。理论分析和仿真结果表明,PE-TBTC译码结构在不降低系统性能的前提下,以牺牲一定的硬件资源为代价,可以成倍地缩短译码所需时间。
A parallel extended tail biting Turbo code（PE-TBTC）,which differs from traditional Turbo codes,is proposed in this paper based on extended tail biting recursive systematic convolution（ETB-RSC） codes.In PE-TBTC,a received bit stream will be divided into several sub-streams for parallel processing,thus the decoding delay can be significantly reduced.Theoretical analyses and simulation results show that PE-TBTC,without any performance loss,has a faster decoding speed at the cost of hardware resource.
出处
《电子测量与仪器学报》
CSCD
2010年第7期638-642,共5页
Journal of Electronic Measurement and Instrumentation
基金
中央高校基本科研业务(编号:ZYGX2009J006)资助项目
973科研项目(编号:2007CB310604)资助项目
关键词
TURBO码
咬尾递归系统卷积码
并行处理
Turbo code
tail biting recursive systematic convolution code
parallel processing
