多输入多输出系统中动态连接混合预编码设计

Design of Dynamically Linked Hybrid Precoding in Multiple-Input Multiple-Output Systems

本文针对大规模多输入多输出系统中混合预编码硬件功耗大及频谱效率性能损失的问题,设计了一种具有高度灵活性的动态连接混合预编码结构,并且将混合预编码设计问题转化为对移相器相位的更新,据此设计了交替优化相位的混合预编码算法。实验结果表明,本文算法适用于多种混合预编码结构,且可以有效提高系统频谱效率性能。

Aiming at the high power consumption of hybrid precoding hardware and the loss of spectral efficiency performance in large-scale multiple-input multiple-output systems,this paper designs a highly flexible dynamically linked hybrid precoding structure,and transforms the hybrid precoding design problem into the phase update of phase shifter,so a hybrid precoding algorithm that optimizes the phase alternately is designed accordingly.The experimental results show that the proposed algorithm in this paper is suitable for a variety of hybrid precoding structures,and can effectively improve the system spectral efficiency performance.