论文标题
多用户完整双工MIMO系统中的同时数据通信和信道估计
Simultaneous Data Communication and Channel Estimation in Multi-User Full Duplex MIMO Systems
论文作者
论文摘要
在本文中，我们研究了完整双工（FD）多输入多输出（MIMO）无线系统中数据和控制（SCDC）信息信号的同时通信。特别是，考虑到服务多个单端FD用户的FD MIMO基站，提出了一种新型的多用户通信方案，用于同时下行链路（DL）波束图数据传输和上行链路（UL）Pilot辅助通道估计。利用最近的FD MIMO硬件体系结构，具有降低的复杂性自学模拟取消，我们共同设计了基站的传输和接收波束形成矩阵，以及用于多个模拟水龙头和数字SI Canceller的设置，其目的是最大化DL总和。我们的仿真结果表明，与最新的基于FD的SCDC方案相比，所提出的方法的表现优于传统的半双层双层对应物，硬件复杂性降低了50％。
In this paper, we study Simultaneous Communication of Data and Control (SCDC) information signals in Full Duplex (FD) Multiple-Input Multiple-Output (MIMO) wireless systems. In particular, considering an FD MIMO base station serving multiple single-antenna FD users, a novel multi-user communication scheme for simultaneous DownLink (DL) beamformed data transmission and UpLink (UL) pilot-assisted channel estimation is presented. Capitalizing on a recent FD MIMO hardware architecture with reduced complexity self-interference analog cancellation, we jointly design the base station's transmit and receive beamforming matrices as well as the settings for the multiple analog taps and the digital SI canceller with the objective to maximize the DL sum rate. Our simulation results showcase that the proposed approach outperforms its conventional half duplex counterpart with 50% reduction in hardware complexity compared to the latest FD-based SCDC schemes.
