Hybrid Precoder and Combiner Design for Single-User mmWave MIMO Systems

wave (mmWave) communications have been regarded as a key technology for the next generation cellular systems since the huge available bandwidth can potentially provide the rates of multiple gigabits per second. In mmWave multiple-input multiple-output (MIMO) systems, the conventional precoding is in...

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Bibliographic Details
Published in:IEEE access 2019, Vol.7, p.63818-63828
Main Authors: Zhang, Ran, Zou, Weixia, Wang, Ye, Cui, Mingyang
Format: Article
Language:English
Subjects:
Antenna arrays
Bandwidths
Broadband
Complexity
Hardware
hybrid precoder
Iterative algorithms
Iterative methods
iterative optimization
Matching pursuit algorithms
Mathematical analysis
Millimeter wave
Millimeter waves
MIMO
MIMO (control systems)
MIMO communication
Optimization
Orthogonal Frequency Division Multiplexing
Power consumption
Precoding
Radio frequency
Wideband
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Summary:wave (mmWave) communications have been regarded as a key technology for the next generation cellular systems since the huge available bandwidth can potentially provide the rates of multiple gigabits per second. In mmWave multiple-input multiple-output (MIMO) systems, the conventional precoding is infeasible due to the hardware cost and power consumption. Therefore, hybrid precoding is considered as a promising technology to provide a compromise between hardware complexity and system performance. In this paper, we investigate the designs of the hybrid precoder and combiner in mmWave MIMO systems. We adopt the hierarchical strategy to design a hybrid precoder to maximize the spectral efficiency. In particular, we focus on the optimization of analog precoder and propose a novel iterative algorithm. Then, based on the optimal analog precoder, we compute the digital precoder to improve the spectral efficiency. For practical implementation, the proposed hybrid precoder design can be used in wideband systems with orthogonal frequency division multiplexing modulation. The simulation results and mathematical analysis show that the proposed algorithm can achieve near-optimal performance with low complexity for mmWave MIMO systems.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2019.2895314