论文标题
使用有限的精度CSIT安全的Z渠道GDOF：结构化代码的稳健性？
Secure GDoF of the Z-channel with Finite Precision CSIT: How Robust are Structured Codes?
论文作者
论文摘要
Under the assumption of perfect channel state information at the transmitters (CSIT), it is known that structured codes offer significant advantages for secure communication in an interference network, e.g., structured jamming signals based on lattice codes may allow a receiver to decode the sum of the jamming signal and the signal being jammed, even though they cannot be separately resolved due to secrecy constraints, subtract the aggregate jammed signal, and then proceed解码较低功率水平的所需代码字。结构化代码的这种好处在多大程度上受到CSIT不确定性的限制？为了回答这个问题，我们探索了问题本身最简单的设置是什么是带有安全通信的Z干扰渠道。使用基于对齐图像界限的总和不等式，我们证明结构化代码的GDOF益处在有限的精度CSIT下完全丢失。 Z干扰通道的安全GDOF区域作为分析的副产品获得。
Under the assumption of perfect channel state information at the transmitters (CSIT), it is known that structured codes offer significant advantages for secure communication in an interference network, e.g., structured jamming signals based on lattice codes may allow a receiver to decode the sum of the jamming signal and the signal being jammed, even though they cannot be separately resolved due to secrecy constraints, subtract the aggregate jammed signal, and then proceed to decode desired codewords at lower power levels. To what extent are such benefits of structured codes fundamentally limited by uncertainty in CSIT? To answer this question, we explore what is perhaps the simplest setting where the question presents itself -- a Z interference channel with secure communication. Using sum-set inequalities based on Aligned Images bounds we prove that the GDoF benefits of structured codes are lost completely under finite precision CSIT. The secure GDoF region of the Z interference channel is obtained as a byproduct of the analysis.
