具有大量不等错误保护的LDPC编码调制方案

G. Ricciutelli, M. Baldi, N. Maturo, F. Chiaraluce
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引用次数: 1

摘要

能够实现不等错误保护的编码和调制方案对于许多必须对部分有效载荷进行不同的噪声保护的应用很感兴趣。它们对于通过广播信道传输机密消息的物理层安全性也很有用。经典的设计方法旨在优化所有保护类的性能,而不依赖于它们之间的分离。相反,我们提出了一种解决方案,以牺牲保护最少的比特的性能为代价,提高保护最多的比特的性能。这允许设计具有很大程度不等的错误保护的编码调制方案。我们还考虑了高阶调制的使用,并提出了一种技术来研究在无限码长的渐近区域中每个保护类的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
LDPC coded modulation schemes with largely unequal error protection
Coding and modulation schemes able to achieve unequal error protection are of interest for many applications in which parts of the payload must be differently protected against the noise. They are also useful for physical layer security of transmissions over the broadcast channel with confidential messages. Classical design approaches aim at optimizing the performance over all the protection classes, independently of the separation between them. We instead propose a solution to improve the performance over the most protected bits, at the expense of performance over the least protected ones. This allows to design coded modulation schemes with largely unequal error protection. We also consider the use of high order modulations, and propose a technique to study the performance over each protection class in the asymptotic regime of infinite code length.
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