Achieving ultra-reliable, low-latency and secure communications is essential for realizing the industrial Internet of Things (IIoT). Non-coherent massive multiple-input multiple-output (MIMO) is one of promising techniques to fulfill ultra-reliable and low-latency requirements. In addition, physical layer authentication (PLA) technology is particularly suitable for secure IIoT communications thanks to its low-latency attribute. A PLA method for non-coherent massive single-input multiple-output (SIMO) IIoT communication systems is proposed in this paper. This method realizes PLA by embedding an authentication signal (tag) into a message signal, referred to as “message-based tag embedding”. It is different from traditional PLA methods utilizing uniform power tags. We design the optimal tag embedding and optimize the power allocation between the message and tag signals to characterize the trade-off between the message and tag error performance. Numerical results show that the proposed message-based tag embedding PLA method is more accurate than the traditional uniform tag embedding method which has an unavoidable tag error floor close to 10%.

中文翻译：

---

非一致性大规模启用SIMO的工业IoT通信的物理层身份验证

实现超可靠，低延迟和安全的通信对于实现工业物联网（IIoT）至关重要。非相干大规模多输入多输出（MIMO）是满足超可靠和低延迟要求的有前途的技术之一。此外，由于其低延迟属性，物理层身份验证（PLA）技术特别适用于安全的IIoT通信。本文提出了一种用于非相干大规模单输入多输出（SIMO）IIoT通信系统的PLA方法。该方法通过将身份验证信号（标签）嵌入到消息信号中（称为“基于消息的标签嵌入”）来实现PLA。它不同于利用统一功率标签的传统PLA方法。我们设计最佳的标签嵌入，并优化消息和标签信号之间的功率分配，以表征消息和标签错误性能之间的权衡。数值结果表明，所提出的基于消息的标签嵌入PLA方法比传统的统一标签嵌入方法具有更高的准确性，传统的统一标签嵌入方法具有不可避免的接近于10％的错误底限。