  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.
