具有有限分辨率移相器的MISO多播混合波束形成

Junwei Wang, Xiaoling Hu, Jiangcai Zhu, C. Zhong, Zhaoyang Zhang
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引用次数: 0

摘要

本文研究了混合波束形成结构下多输入单输出多播系统的预编码器设计。主要目标是考虑到有限分辨率移相器,最大化所有用户的最小接收信噪比。为了解决优化问题的非凸性,采用了半定松弛技术。结合交替优化方法,提出了几种启发式算法。数值结果表明,与现有算法相比,本文提出的算法是有效的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Hybrid Beamforming for MISO Multicasting with Finite-Resolution Phase Shifters
This work deals with precoder design of a multiple-input single-output multicasting system with hybrid beamforming architecture. The main objective is to maximize the minimum received signal-to-noise ratio of all users taking into account of finite-resolution phase shifters. To address the non-convex nature of the optimization problem, the semi-definite relaxation technique is employed. Together with the alternating optimization approach, several heuristic algorithms are proposed. Numerical results show that the proposed algorithms are effective when compared with existing algorithms.
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