Information unequal error protection using polar codes
Information unequal error protection using polar codes
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DOI：
10.1049/iet-com.2017.1195
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发表时间：
2018-05
期刊：
影响因子：
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通讯作者：
Ammar Hadi;E. Alsusa;A. Al-Dweik
中科院分区：
文献类型：
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作者：
Ammar Hadi;E. Alsusa;A. Al-Dweik
不等错误保护（UEP）将数据划分为不同的重要程度，以确保源信息中最重要的部分比不太重要的部分得到更多的保护。在这项研究中，作者研究了使用极性编码的UEP的应用，并提出了一种利用这些编码的信道极化特性来实现UEP而无需任何重大修改的技术。他们演示了所提出的技术的误差范围，特别是在JPEG2000的背景下。此外，他们还提出了一种基于迭代译码的源信道联合译码方法。该方法利用了JPEG2000解码器中已经存在的错误恢复工具。结果表明，该技术在具有等误差保护的情况下，比传统传输具有更好的性能。
Unequal error protection (UEP) divides the data into different levels of importance in order to ensure that the most important parts of the source information have more protection than the less important parts. In this study, the authors investigate the application of UEP using polar codes and propose a technique that utilises the channel polarisation property of these codes to achieve UEP without any significant modification. They demonstrate the error bounds of the proposed technique particularly within the context of JPEG2000. In addition, they propose a joint source-channel decoding method that is based on iterative decoding. This method takes the advantage of the error resilience tools that already exist in the JPEG2000 decoder. It will be shown that the proposed technique offers better performance than the conventional transmission with equal error protection.