Low-Complexity Wideband Hybrid Precoding for mmWave MIMO-OFDM - Hsin-Wen Ku; Wei-Hao Fang; Huan-Lun Tso; Pei-Yun Tsai; Yuan-Hao Huang (IEEE International Symposium on Circuits and Systems, ISCAS 2021, Daegu, South Korea, May 22-28, 2021, 2021)