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arXiv 2202.03100cs.ITmath.IT
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顺序通道合成

Sequential Channel Synthesis

Lei Yu, Venkat Anantharam

摘要:

在过去的十年中,信道综合问题得到了广泛的研究。在本文中,我们考虑的顺序版本中,编码器和解码器的工作顺序的方式。在目标联合分布的一个温和的假设下,我们提供了一个完整的(单字母)表征的解决方案的点对点的情况下,这表明,典型的符号的符号映射一般不是最佳的,但确实是最佳的,如果我们对编码器和解码器做一些额外的假设。我们还将这个结果扩展到广播场景和交互式通信场景。我们提供了在广播设置和一个完整的表征的解决方案在一个温和的条件下的目标联合分布的互动通信的情况下的界限。我们的证明是基于雷尼熵方法。

英文摘要:

The channel synthesis problem has been widely investigated over the last decade. In this paper, we consider the sequential version in which the encoder and the decoder work in a sequential way. Under a mild assumption on the target joint distribution we provide a complete (single-letter) characterization of the solution for the point-to-point case, which shows that the canonical symbol-by-symbol mapping is not optimal in general, but is indeed optimal if we make some additional assumptions on the encoder and decoder. We also extend this result to the broadcast scenario and the interactive communication scenario. We provide bounds in the broadcast setting and a complete characterization of the solution under a mild condition on the target joint distribution in the interactive communication case. Our proofs are based on a Rényi entropy method.

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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