论文标题
肮脏的Mac的RIS辅助通信：容量区域和中断概率
RIS-Aided Communications over Dirty MAC: Capacity Region and Outage Probability
论文作者
论文摘要
我们在发射机上具有侧面信息（SI）的可重构智能表面（RIS）的通信系统中的两用户多访问通道（MAC）的容量区域。我们考虑了两个上行链路通信方案：（i）双重肮脏的Mac，在该Mac中，干涉对两个用户都不熟悉； （ii）一个肮脏的Mac模型，其中只有一个用户知道干扰，而另一个则不知道干扰。考虑到每个用户都得到了带有MI元素的不同RIS的帮助，我们为两个系统模型提供了容量区域的封闭形式表达式和中断概率（OP）。结果表明，在两种情况下，RIS的使用对扩展容量区域并改善OP是有益的。
We characterize the capacity region of a two-user multiple access channel (MAC) in a reconfigurable intelligent surface (RIS)-aided communication system with side information (SI) at the transmitters. We consider two uplink communication scenarios: (i) a double dirty MAC where the interferences are known non-causally to both users; and (ii) a single dirty MAC model where only one of the users knows the interference and the other one is not aware of the interference. Considering that each of the users is assisted by a different RIS with Mi elements, we derive closed-form expressions for the capacity region and the outage probability (OP) for both system models. Results show that the use of RISs is beneficial to extend the capacity region and improve the OP in both scenarios.
