Hybrid Precoder Design for mmWave Massive MIMO with Low-Resolution Phase Shifters

Economical and energy-efficient hybrid digital and analog beamforming design in millimeter wave massive multiple-input multiple-output systems is of great interest in the future wireless communication. One major deficiency of most existing hybrid beamforming designs is the assumption of infinite or...

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Vydáno v:International Symposium on Wireless Communication Systems s. 283 - 287
Hlavní autoři: Yuan, Yipu, Lee, Li-Hsin, Yu, Jung-Lang, Zhang, Biling
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.08.2019
Témata:
Array signal processing
Baseband
Complexity theory
Discrete Fourier transforms
hybrid beamforming
low-complexity
massive MIMO
millimeter wave
MIMO communication
Phase shifters
phase shifters component
Radio frequency
ISSN:2154-0225
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Popis
Shrnutí:Economical and energy-efficient hybrid digital and analog beamforming design in millimeter wave massive multiple-input multiple-output systems is of great interest in the future wireless communication. One major deficiency of most existing hybrid beamforming designs is the assumption of infinite or high-resolution phase shifters (PSs) in analog beamformer implementations. The employment of low-resolution PSs is more feasible because of hardware limitations. In this paper, we investigate the design of hybrid beamformers with low-resolution PSs in mmWave MIMO systems. In order to achieve better spectral efficiency, a joint codebook selection and precoder design scheme is presented. We first construct a set of shifted DFT codebooks, and then select the best one among them. Based on the chosen codebook, the optimal precoder and combiner can be determined using channel gain or searching algorithm. The computational complexity is also analyzed. Simulation results reveal the performance advantages of the proposed algorithms.
ISSN:2154-0225
DOI:10.1109/ISWCS.2019.8877165