Millimeter-Wave Hybrid Precoder Design With a Fast Iterative Beam Split and Detection Algorithm

The hybrid analog and digital structure of large-scale antenna array offers a good tradeoff between cost and flexibility, which is a promising solution for millimeter-wave (mm-wave) system. This letter proposes a novel hybrid precoder (HP) design with an iterative beam split and detection algorithm,...

Full description

Saved in:
Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 19; no. 12; pp. 2368 - 2372
Main Authors Nie, Yifang, Li, Fangwei, Mbugua, Allan Wainaina, Fan, Wei
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Antenna arrays
Array signal processing
Beamforming
Channels
hybrid precoding
Millimeter waves
millimeter-wave (mm-wave) communications
multipath propagation
Precoding
Radio frequency
Training
Transmission line matrix methods
Wave propagation
Online AccessGet full text

Cover

More Information
Summary:The hybrid analog and digital structure of large-scale antenna array offers a good tradeoff between cost and flexibility, which is a promising solution for millimeter-wave (mm-wave) system. This letter proposes a novel hybrid precoder (HP) design with an iterative beam split and detection algorithm, which works well for sparse mm-wave channels. The proposed strategy can extract the dominant propagation paths by iterative trainings, where the number of dominant paths up to that of radio frequency chains can be detected. The effectiveness and time overhead parameterized by the number of iterations are investigated. The experimental results demonstrated that we can approach optimal HP design with the proposed algorithm with only eight iterations for measured channels, which significantly reduced the complexity compared to the exhaustive search method.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2020.3033294