论文标题
带有因果和非因果状态信息的窃听通道：重新审视
Wiretap channels with causal and non-causal state information: revisited
论文作者
论文摘要
研究了带有因果通道状态信息（CSI）的窃听通道的编码问题（ALICE）和/或解码器（BOB）。我们在这里特别关心的是在语义安全标准下可实现的秘密秘密键率对。我们的主要结果扩大了Chia和El Gamal [10]，Fujita [11]以及Han and Sasaki [23]给出的所有可实现率的结果。为了做到这一点，我们首先在爱丽丝（Alice）的因果CSI中得出一个统一的定理（定理2），后者立即通过利用了Bunin等人最近确定的Alice的非毒物CSI的窃听定理来统一的精确定理。 [22]。在这里唯一要做的就是以因果方式重新解释后者的非因果关系。这种方法的一个突出特征是，我们能够使用以前的作品中使用的Block-Markov编码方案。同样，给出了爱丽丝和鲍勃的非毒物CSI的窃听通道的确切秘密密钥容量区域。
The coding problem for wiretap channels with causal channel state information (CSI) available at the encoder (Alice) and/or the decoder (Bob) is studied. We are concerned here particularily with the problem of achievable secret-message secret-key rate pairs under the semantic security criterion. Our main result extends all the previous results on achievable rates as given by Chia and El Gamal [10], Fujita [11], and Han and Sasaki [23]. In order to do this, we first derive a unifying theorem (Theorem 2) with causal CSI at Alice, which follows immediately by leveraging the unifying seminal theorem for wiretap channels with non-causal CSI at Alice as recently established by Bunin et al. [22]. The only thing to do here is just to re-interpret the latter non-causal one in a causal manner. A prominent feature of this approach is that we are able to dispense with the block-Markov encoding scheme as used in the previous works. Also, the exact secret-message key capacity region for wiretap channels with non-causal CSI at both Alice and Bob is given.
