In this paper, we developed new coding strategies for the Z-channel. In particular, we look at the case with two-stage encoding. In this case, the encoder uses noiseless feedback once and adjusts the further encoding strategy based on the previous partial output of the channel. Nevertheless, the developed codes improve the known results with full feedback for small length and 1 error. A tool for the two-stage strategy is the development of a new optimality condition for non-adaptive codes.
翻译:在本文中,我们为Z频道制定了新的编码战略。特别是,我们用两阶段编码来审视这个案例。在这种情况下,编码器使用一次无噪音反馈,并根据先前的频道部分输出调整进一步的编码战略。然而,已开发的编码改进了已知结果,对短长和1个错误提供了全部反馈。两阶段战略的一个工具是开发新的非适应性代码的最佳性条件。