论文标题
具有机密和开放消息的MAC Wiletap频道：改进的可实现区域和低复杂的预编码器设计
MAC Wiretap Channels with Confidential and Open Messages: Improved Achievable Region and Low-complexity Precoder Design
论文作者
论文摘要
本文研究了多个访问窃听（MAC-WT）通道的可实现的区域和预编码器设计，每个用户都会传输秘密和开放的消息（即非固定）消息。所有这些消息均针对合法的接收器（或Bob for Boovity），而Eavesdropper（EVE）仅对所有用户的秘密消息感兴趣。通过允许零秘密消息速率的用户充当无窃听的常规MAC通道用户，我们表明可以放大[1]中给出的无内存（DM）MAC-WT通道的可实现区域。在[1]中，通过考虑两用户案例证明了可实现性，从而可以通过直接使用傅立叶 - 莫茨金消除程序来证明一个关键的辅助引理。但是，这种方法不会与任何数量的用户概括。在本文中，我们提供了一个新区域，通常在[1]中扩大并提供一般性的证明。
This paper investigates the achievable region and precoder design for multiple access wiretap (MAC-WT) channels, where each user transmits both secret and open (i.e., non-confidential) messages. All these messages are intended for the legitimate receiver (or Bob for brevity) and the eavesdropper (Eve) is interested only in the secret messages of all users. By allowing users with zero secret message rate to act as conventional MAC channel users with no wiretapping, we show that the achievable region of the discrete memoryless (DM) MAC-WT channel given in [1] can be enlarged. In [1], the achievability was proven by considering the two-user case, making it possible to prove a key auxiliary lemma by directly using the Fourier-Motzkin elimination procedure. However, this approach does not generalize to the case with any number of users. In this paper, we provide a new region that generally enlarges that in [1] and provide general achievability proof.
