Path Pruning for Unequal Error Protection Turbo Codes
Path Pruning for Unequal Error Protection Turbo Codes
复制标题
不等差错保护 Turbo 码的路径修剪
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
N. von Deetzen
中科院分区：
文献类型：
--
作者：
W. Henkel;N. von Deetzen
对于某些通信中的某些应用程序，希望为不同类型的信息数据提供不等的错误保护。在图像编码中，例如，存在将这些数据通过嘈杂的通道传输时必须受到不同保护级别的位类型。在本文中，我们专注于C. Berrou等，1993）具有不等的误差保护功能，这些功能是通过修改代码速率r = k/n来实现的。在指出刺穿和路径修剪分别是分母和分子中的速率的修改之后，更详细地研究了后者。给出了设计规则，并提出了带路径悬挂的卷积组件代码的涡轮代码性能分析的出口图表
For some applications in communications, it is desirable to provide unequal error protection for different types of information data. In image coding, e.g., types of bits exist which have to be protected with different protection levels when transmitting these data over noisy channels. In this paper, we concentrate on turbo codes C. Berrou et al., 1993) with unequal error protection capabilities which are achieved by modifying the code rate R = k/n. After pointing out that puncturing and path pruning are modifications of the rate in the denominator and numerator, respectively, the latter is studied in more detail. Design rules are given and EXIT charts for performance analysis of turbo codes with path-pruned convolutional component codes are presented