In this letter, we propose a blockwise phase rotation-aided analog transmit beamforming (BPR-ATB) scheme to improve the spectral efficiency and the bit-error-rate (BER) performance in millimeter wave (mmWave) communication systems. Due to the phase angle optimization issues of the conventional analog beamforming, we design the BPR-ATB for reducing the rotated beamspace of the equivalent channel and improving the minimum Euclidean distance. To verify the effectiveness of the proposed BPR-ATB scheme, we employ an Alamouti coding technique at the transmitter and evaluate the bit-error-rate performance for mmWave multiple-input and single-output systems. The simulation results show that the proposed BPR-ATB scheme outperforms the conventional discrete Fourier transform-based ATB scheme.

翻译：在本信内,我们提出一个分块旋转阶段辅助模拟传输波束成型(BPR-ATB)计划,以提高光谱效率和毫米波(mmWave)通信系统的比特机率(BER)性能,由于传统模拟波束成型的阶段角优化问题,我们设计BPR-ABT,以减少对等频道的旋转波束空间,并改进最低的Euclidean距离。为了核实拟议的BPR-ATB计划的有效性,我们在发射机采用Alouti编码技术,并评估毫米Wave多输出和单输出系统比特机率的性能。模拟结果表明,拟议的BPR-ABT计划比传统的离散Fourier变异式自动交换机计划要强。