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Analog/digital hybrid precoder and combiner have been widely used inmillimeter wave (mmWave) multiple-input multiple-output (MIMO) systems due toits energy-efficient and economic superiorities. Infinite resolution of phaseshifters (PSs) for the analog beamformer can achieve very close performancecompared to the full-digital scheme but will result in high complexity andintensive power consumption. Thus, more cost effective and energy efficient lowresolution PSs are typically used in practical mmWave MIMO systems. In thispaper, we consider the joint hybrid precoder and combiner design with one-bitquantized PSs in mmWave MIMO systems. We propose to firstly design the analogprecoder and combiner pair for each data stream successively, aiming atconditionally maximizing the spectral efficiency. We present a novel binaryanalog precoder and combiner optimization algorithm under a Rank-1approximation of the interference-included equivalent channel with lower thanquadratic complexity. Then the digital precoder and combiner are computed basedon the obtained baseband effective channel to further enhance the spectralefficiency. Simulation results demonstrate that the proposed algorithmoutperforms the existing one-bit PSs based hybrid beamforming scheme.

Hybrid Precoder and Combiner Design with One-Bit Quantized Phase Shifters in mmWave MIMO Systems