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arXiv 0901.2370cs.ITmath.IT
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极化码的信道和信源编码性能

Performance of Polar Codes for Channel and Source Coding

Nadine Hussami, Satish Babu Korada, Rudiger Urbanke

摘要:

最近由Arıkan引入的极化码是已知使用低复杂度连续消除解码器实现对称信道容量的第一个码族。虽然这些代码,结合连续取消,在这方面是最佳的,他们的有限长度的性能是没有破纪录的。我们讨论了几种技术,通过它们的有限长度的性能可以提高。我们还研究了这些代码的性能的上下文中的信源编码,无损和有损,在单用户上下文中,以及分布式应用程序。

英文摘要:

Polar codes, introduced recently by Arıkan, are the first family of codes known to achieve capacity of symmetric channels using a low complexity successive cancellation decoder. Although these codes, combined with successive cancellation, are optimal in this respect, their finite-length performance is not record breaking. We discuss several techniques through which their finite-length performance can be improved. We also study the performance of these codes in the context of source coding, both lossless and lossy, in the single-user context as well as for distributed applications.

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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