Article (Scientific journals)
Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters
Huang, Huiping; Keskin, Musa Furkan; Wymeersch, Henk et al.
2024In IEEE Transactions on Communications, p. 1-1
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Keywords :
alternating direction method of multipliers; alternating optimization; angle-of-departure estimation; Hybrid beamforming; hybrid precoder; phase shifter; Electrical and Electronic Engineering
Abstract :
[en] Hybrid analog-digital beamforming stands out as a key enabler for future communication systems with a massive number of antennas. In this paper, we investigate the hybrid precoder design problem for angle-of-departure (AoD) estimation, where we take into account the practical constraint on the limited resolution of phase shifters. Our goal is to design a radio-frequency (RF) precoder and a base-band (BB) precoder to estimate AoD of the user with high accuracy. To this end, we propose a two-step strategy where we first obtain the fully digital precoder that minimizes the angle error bound, and then the resulting digital precoder is decomposed into an RF precoder and a BB precoder, based on the alternating optimization and the alternating direction method of multipliers. Furthermore, we derive the quantization error upper bound and provide convergence conditions for the proposed algorithm. Numerical results demonstrate the superior performance of the proposed method over state-of-the-art baselines.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Huang, Huiping ;  Chalmers University of Technology, Department of Electrical Engineering, Gothenburg, Sweden
Keskin, Musa Furkan ;  Chalmers University of Technology, Department of Electrical Engineering, Gothenburg, Sweden
Wymeersch, Henk ;  Chalmers University of Technology, Department of Electrical Engineering, Gothenburg, Sweden
Cai, Xuesong ;  Lund University, Department of Electrical and Information Technology, Lund, Sweden
WU, Linlong  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SPARC
Thunberg, Johan;  Lund University, Department of Electrical and Information Technology, Lund, Sweden
Tufvesson, Fredrik ;  Lund University, Department of Electrical and Information Technology, Lund, Sweden
External co-authors :
yes
Language :
English
Title :
Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters
Publication date :
2024
Journal title :
IEEE Transactions on Communications
ISSN :
0090-6778
eISSN :
1558-0857
Publisher :
Institute of Electrical and Electronics Engineers Inc.
Pages :
1-1
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
HORIZON EUROPE Marie Sklodowska-Curie Actions
VINNOVA
Vetenskapsr?det
Funding text :
This paper is supported by the Vinnova B5GPOS Project under Grant 2022-01640, HORIZON-MSCA NEAT-6G Project under Grant 101152670, and the Swedish Research Council grant 2022-03007.
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