Alternate hybrid precoding algorithm for wideband millimetre wave massive MIMO systems

Hybrid precoding, combining the digital and analogue precoding, is a key enabler to reach a compromise between system performance and hardware complexity in millimetre wave (mmWave) massive multiple-input multiple-output (MIMO) systems. Most previous studies on hybrid precoding considered narrowband...

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Bibliographic Details
Published in:IET communications Vol. 14; no. 8; pp. 1261 - 1267
Main Authors: Zhang, Ran, Zou, Weixia, Wang, Ye, Cui, Mingyang, Sun, Xuebin
Format: Journal Article
Language:English
Published: The Institution of Engineering and Technology 12.05.2020
Subjects:
analogue precoder
broadband networks
digital analogue precoding
digital precoder
hardware complexity
hybrid precoding algorithm
hybrid precoding design
hybrid precoding problem
low‐complexity algorithm
millimetre wave communication
millimetre wave massive multiple‐input multiple‐output systems
MIMO communication
mmWave massive MIMO systems
mmWave OFDM systems
mmWave systems
narrowband channels
OFDM modulation
orthogonal frequency division multiplexing
precoding
Research Article
system performance
wideband channels
wideband millimetre wave massive MIMO systems
wireless channels
hybrid precoding design
mmWave massive MIMO systems
orthogonal frequency division multiplexing
millimetre wave massive multiple-input multiple-output systems
low-complexity algorithm
digital precoder
broadband networks
millimetre wave communication
wideband millimetre wave massive MIMO systems
precoding
mmWave systems
narrowband channels
hybrid precoding algorithm
wideband channels
system performance
OFDM modulation
wireless channels
hardware complexity
hybrid precoding problem
digital analogue precoding
analogue precoder
mmWave OFDM systems
MIMO communication
ISSN:1751-8628, 1751-8636
Online Access:Get full text
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Summary:Hybrid precoding, combining the digital and analogue precoding, is a key enabler to reach a compromise between system performance and hardware complexity in millimetre wave (mmWave) massive multiple-input multiple-output (MIMO) systems. Most previous studies on hybrid precoding considered narrowband channels. However, mmWave systems are expected to operate on wideband channels with frequency selectivity. In this study, the authors focus on the hybrid precoding design in mmWave massive MIMO systems using orthogonal frequency division multiplexing (OFDM). By transforming the hybrid precoding problem into a series of sub-problems, they propose a low-complexity algorithm to design the digital precoder and analogue precoder alternately. In particular, a phase pursuit method is introduced to seek this solution of analogue precoding matrix with the constant amplitude constraint. Simulation results and complexity evaluations reveal that the proposed algorithm can obtain better performance and lower complexity than some existing solutions in mmWave OFDM systems.
ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2019.1070