In this paper, we propose a novel joint hybrid precoder and combiner design for maximizing the average achievable sum-rate of single-user orthogonal frequency division multiplexing millimeter wave massive MIMO systems. We formulate the analog precoder and combiner design as a constrained Tucker2 decomposition and solve it by using the projected alternate least square method. Such a formulation allows maximizing the sum of the effective baseband gains over all subcarriers, while suppressing the interference among the data streams in the same subcarrier. In turn, the digital precoder and combiner are obtained from the effective baseband channel's singular value decomposition on a per-subcarrier basis. Numerical simulation results show that the proposed method outperforms other existing designs.

中文翻译：

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用于毫米波 OFDM 大规模 MIMO 通信的基于张量分解的混合波束成形设计

在本文中，我们提出了一种新颖的联合混合预编码器和组合器设计，用于最大化单用户正交频分复用毫米波大规模 MIMO 系统的平均可实现总和速率。我们将模拟预编码器和组合器设计公式化为受约束的 Tucker2 分解，并使用投影交替最小二乘法解决它。这种公式允许最大化所有子载波上的有效基带增益之和，同时抑制同一子载波中数据流之间的干扰。反过来，数字预编码器和组合器是从基于每个子载波的有效基带信道的奇异值分解中获得的。数值模拟结果表明，所提出的方法优于其他现有设计。