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arXiv 1912.04411cs.ITmath.IT
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离散无记忆信道列表译码可靠性函数低速率界的修正

A Revisitation of Low-Rate Bounds on the Reliability Function of Discrete Memoryless Channels for List Decoding

Marco Bondaschi, Marco Dalai

摘要:

我们修改的证明低速率上界的离散无记忆信道的可靠性函数的普通和列表解码方案,特别是Berlekamp和Blinovsky的零速率界,以及Blahut的低速率界。Berlekamp和Blinovsky设计的零速率界的现有证明在某种程度上是复杂的,因为它们以某种形式包含一些繁琐的“非标准”程序或计算。在这里,我们遵循Blinovsky的想法,使用拉姆齐理论的结果Komlos,我们补充它与一些缺失的步骤,提出一个证明,这是严格的,更容易检查。此外,我们将展示如何使用这些技术来修复一个错误,无效的证明Blahut的低速率界,这是在这里提出的列表解码和一般渠道的扩展形式。

英文摘要:

We revise the proof of low-rate upper bounds on the reliability function of discrete memoryless channels for ordinary and list-decoding schemes, in particular Berlekamp and Blinovsky's zero-rate bound, as well as Blahut's bound for low rates. The available proofs of the zero-rate bound devised by Berlekamp and Blinovsky are somehow complicated in that they contain in one form or another some cumbersome "non-standard" procedures or computations. Here we follow Blinovsky's idea of using a Ramsey-theoretic result by Komlos, and we complement it with some missing steps to present a proof which is rigorous and easier to inspect. Furthermore, we show how these techniques can be used to fix an error that invalidated the proof of Blahut's low-rate bound, which is here presented in an extended form for list decoding and for general channels.

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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