Abstract
The utilization of millimeter wave (mmWave) frequency has shown great potential for future wireless cellular systems. Compared with conventional fully digital precoding, hybrid precoding achieves a high performance with less radio frequency (RF) chains and lower hardware complexity. In this paper, we investigate the hybrid precoding for multiuser communication in a downlink mmWave massive MIMO system. First, we present a hybrid precoding scheme designed based on zero-forcing (ZF) precoding. Then, we derive the spectral efficiency of this hybrid precoding scheme and get its closed-form expression which can be represented by the digamma function. Finally, simulation results demonstrate the validity of the analytical result.
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Li, J., Yue, D., Wang, M. (2020). Spectral Efficiency Analysis of Hybrid Precoding in Millimeter Wave MIMO Systems. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 517. Springer, Singapore. https://doi.org/10.1007/978-981-13-6508-9_86
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DOI: https://doi.org/10.1007/978-981-13-6508-9_86
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