摘要
波束赋形在毫米波大规模MIMO系统中具有重要作用。文章采用模数混合阵列天线结构,借助凸优化技术,实现毫米波大规模MIMO系统传输和速率最大化,获取最优波束赋形矢量。通过对不同SINR情况进行分析,获取在最优波束赋形矢量下最佳功率分配矩阵,实现高速多用户波束赋形传输。实验结果表明,该方法有效提升了毫米波大规模MIMO系统传输的和速率。
Beamforming plays an important role in millimeter wave large-scale MIMO system. In this paper, an analog-to-digital hybrid array antenna structure is used to maximize the transmission sum rate of millimeter wave large-scale MIMO system and obtain the optimal beamforming vector with convex optimization technology. Through the analysis of different SINR cases, the optimal power allocation matrix under the optimal beamforming vector is obtained to realize high-speed multi-user beamforming transmission. The experimental results show that this method can effectively improve the sum rate of the transmission of millimeter wave large-scale MIMO system.
作者
刘琦
侯丽
彭章友
Liu Qi;Hou Li;Peng Zhangyou(School of Communication&Information Engineering,Shanghai University,Shanghai 200444,China;School of Information Engineering,Huangshan University,Huangshan 245041,China)
出处
《黄山学院学报》
2021年第3期22-25,共4页
Journal of Huangshan University
基金
安徽省高校优秀青年人才支持计划重点项目(gxyqZD2019069)
安徽省自然科学基金项目(1908085MF178)
安徽省教育厅自然科学研究重点项目(KJ2019A0609)。
关键词
毫米波
大规模MIMO
凸优化
和速率
millimeter wave
massive MIMO
convex optimization
sum rate
