论文标题
具有硬件限制和不完美的频道估计的全双工MIMO系统
Full-Duplex MIMO Systems with Hardware Limitations and Imperfect Channel Estimation
论文作者
论文摘要
我们考虑一个双向内通用（FD）多输入多输出（MIMO）系统，必须受到不完善的通道状态信息（CSI），硬件失真和有限的模拟取消能力，以及在接收器模拟域上的自我解释功能（SI）功率要求，以避免低噪声和低噪声的效果。提供了一种新型的最小平方误差（MMSE）基于数字预码器和SI取消组合的联合设计，该设计结合了最近的机器学习文献中著名的梯度投影方法和非单调性，以解决本文中最佳问题的非转换性。仿真结果说明了拟议的SI取消算法的有效性。
We consider a bidirectional in-band full-duplex (FD) multiple-input multiple-output (MIMO) system subject to imperfect channel state information (CSI), hardware distortion, and limited analog cancellation capability as well as the self-interference (SI) power requirement at the receiver analog domain so as to avoid the saturation of low noise amplifier (LNA). A novel minimum mean square error (MMSE)-based joint design of digital precoder and combiner for SI cancellation is offered, which combines the well-known gradient projection method and non-monotonicity considered in recent machine-learning literature in order to tackle the non-convexity of the optimization problem formulated in this article. Simulation results illustrate the effectiveness of the proposed SI cancellation algorithm.
