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arXiv 2104.08190cs.ITmath.IT
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基于自动编码器的不等错误保护码

Autoencoder-Based Unequal Error Protection Codes

Vukan Ninkovic, Dejan Vukobratovic, Christian Häger, Henk Wymeersch, Alexandre Graell i Amat

摘要:

我们提出了一种新的自动编码器为基础的方法设计的代码,提供不等错误保护(UEP)的能力。所提出的设计是基于一个通用的自动编码器损失函数,可同时容纳消息和位的UEP的情况。在这两种情况下,可以使用相关联的权重向量来调整广义损失函数,以权衡对应于不同重要性类别的错误概率。对于消息明智的UEP,我们比较了建议的基于自动编码器的UEP码与随机陪集码的联合。对于按比特的UEP,我们将所提出的编码与UEP无码率脊码和随机高斯码的叠加进行了比较。在所有情况下,基于自动编码器的代码显示出优越的性能,同时提供设计简单性和灵活性,在不同的重要性类别之间权衡错误保护。

英文摘要:

We present a novel autoencoder-based approach for designing codes that provide unequal error protection (UEP) capabilities. The proposed design is based on a generalization of an autoencoder loss function that accommodates both message-wise and bit-wise UEP scenarios. In both scenarios, the generalized loss function can be adjusted using an associated weight vector to trade off error probabilities corresponding to different importance classes. For message-wise UEP, we compare the proposed autoencoder-based UEP codes with a union of random coset codes. For bit-wise UEP, the proposed codes are compared with UEP rateless spinal codes and the superposition of random Gaussian codes. In all cases, the autoencoder-based codes show superior performance while providing design simplicity and flexibility in trading off error protection among different importance classes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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