论文标题
MIMO-NOMA网络中的安全传输
Secure Transmission in MIMO-NOMA Networks
论文作者
论文摘要
这封信侧重于两用户多输入多输出（MIMO）非正交多访问（NOMA）网络的物理层安全性。线性预编码技术旨在确保每个用户从其对应物中的消息的机密性。该技术首先将两个用户之间的基站功率分配，并基于此将安全的MIMO-NOMA通道分解为两个MIMO Wiletap通道，并为每个通道设计了发送协方差矩阵。与现有的线性预编码方法相比，所提出的方法显着扩大了保密率，并且在性能和计算成本之间取得了平衡。仿真结果验证了所提出的方法的有效性。
This letter focuses on the physical layer security over two-user multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks. A linear precoding technique is designed to ensure the confidentiality of the message of each user from its counterpart. This technique first splits the base station power between the two users and, based on that, decomposes the secure MIMO-NOMA channel into two MIMO wiretap channels, and designs the transmit covariance matrix for each channel separately. The proposed method substantially enlarges the secrecy rate compared to existing linear precoding methods and strikes a balance between performance and computation cost. Simulation results verify the effectiveness of the proposed method.
