Hybrid Precoding for Correlated Multi-user mm-wave Channels Based on Beam Alignment

Yifang Nie; Fangwei Li; Allan Wainaina Mbugua; Wei Fan

doi:10.1109/LWC.2021.3129264

Hybrid Precoding for Correlated Multi-user mm-wave Channels Based on Beam Alignment

Yifang Nie, Fangwei Li, Allan Wainaina Mbugua, Wei Fan

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.

Original language	English
Journal	I E E E Wireless Communications Letters
Volume	11
Issue number	2
Pages (from-to)	381-385
Number of pages	5
ISSN	2162-2337
DOIs	https://doi.org/10.1109/LWC.2021.3129264
Publication status	Published - 2022

Keywords

Array signal processing
Beam alignment
Indexes
Interference
Matching pursuit algorithms
Precoding
Radio frequency
Wireless communication
hybrid precoding
millimeter-wave channels
multi-user communications.

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title = "Hybrid Precoding for Correlated Multi-user mm-wave Channels Based on Beam Alignment",

abstract = "Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.",

keywords = "Array signal processing, Beam alignment, Indexes, Interference, Matching pursuit algorithms, Precoding, Radio frequency, Wireless communication, hybrid precoding, millimeter-wave channels, multi-user communications.",

author = "Yifang Nie and Fangwei Li and Mbugua, {Allan Wainaina} and Wei Fan",

year = "2022",

doi = "10.1109/LWC.2021.3129264",

language = "English",

volume = "11",

pages = "381--385",

journal = "I E E E Wireless Communications Letters",

issn = "2162-2337",

publisher = "IEEE",

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TY - JOUR

T1 - Hybrid Precoding for Correlated Multi-user mm-wave Channels Based on Beam Alignment

AU - Nie, Yifang

AU - Li, Fangwei

AU - Mbugua, Allan Wainaina

AU - Fan, Wei

PY - 2022

Y1 - 2022

N2 - Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.

AB - Hybrid analog-and-digital precoding in millimeter-wave (mm-wave) multiple-input multiple-output (MIMO) communications is a promising strategy to save cost with a minimal performance penalty. In this letter, a novel hybrid precoder (HP) design is proposed for correlated multi-user mm-wave communication scenarios. With a hybrid beamformer structure, the proposed solution can effectively align beams to cover the strongest paths of individual users, and suppress interference by iterative ping-pong beamforming (PPB) strategy. Experimental results demonstrate that the proposed scheme can obtain higher spectrum efficiency compared to existing HP designs in highly correlated channels.

KW - Array signal processing

KW - Beam alignment

KW - Indexes

KW - Interference

KW - Matching pursuit algorithms

KW - Precoding

KW - Radio frequency

KW - Wireless communication

KW - hybrid precoding

KW - millimeter-wave channels

KW - multi-user communications.

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U2 - 10.1109/LWC.2021.3129264

DO - 10.1109/LWC.2021.3129264

M3 - Journal article

SN - 2162-2337

VL - 11

SP - 381

EP - 385

JO - I E E E Wireless Communications Letters

JF - I E E E Wireless Communications Letters

IS - 2

ER -

Hybrid Precoding for Correlated Multi-user mm-wave Channels Based on Beam Alignment

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Keywords

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