Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems

As a promising technology in the next generation mobile network, millimeter-wave (mmWave) communication can mitigate the spectrum crunch of improving the network capacity by exploiting the large underutilized spectrum bands of the mmWave frequencies. The hybrid (analog/digital) beamforming of multi-...

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Main Authors: Yang Zhang, Jianhe Du, Yuanzhi Chen, Meng Han, Xingwang Li
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8884088/
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spelling doaj-4702986a603d4d19a462a0e72218c60f2021-03-30T00:19:01ZengIEEEIEEE Access2169-35362019-01-01715721215722510.1109/ACCESS.2019.29497868884088Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay SystemsYang Zhang0Jianhe Du1https://orcid.org/0000-0002-7538-8818Yuanzhi Chen2Meng Han3Xingwang Li4https://orcid.org/0000-0002-0907-6517School of Information and Communication Engineering, Communication University of China, Beijing, ChinaSchool of Information and Communication Engineering, Communication University of China, Beijing, ChinaSchool of Information and Communication Engineering, Communication University of China, Beijing, ChinaSchool of Information and Communication Engineering, Communication University of China, Beijing, ChinaSchool of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo, ChinaAs a promising technology in the next generation mobile network, millimeter-wave (mmWave) communication can mitigate the spectrum crunch of improving the network capacity by exploiting the large underutilized spectrum bands of the mmWave frequencies. The hybrid (analog/digital) beamforming of multi-data streams are widely used to further the spectrum efficiency of mmWave relay system when faced with the complex environment or long distance communication. This paper investigates the hybrid beamforming scheme for the decode-and-forward (DF) mmWave massive multiple-input multiple-output (MIMO) relay system with mixed structure and full-connected structure. We optimize hybrid beamforming of relay system by maximizing the sum rate of the overall system as an objective function. To reduce the computational complexity, we reformulate the original problem as two single-hop mmWave MIMO sum-rate maximization subproblems. Then, the piecewise successive approximation method is proposed based on the criterion which jointly designs the analog and digital beamforming stages by trying to avoid the loss of information at each stage. The hybrid beamforming of the two subproblems can be solved by the proposed scheme united with the idea of successive interference cancelation (SIC), the baseband block diagonalization (BD) scheme, and waterfilling power allocation method. Finally, simulation results confirm that the proposed optimal method can achieve good performance in hybrid beamforming design of relay system with both mixed and full-connected structures.https://ieeexplore.ieee.org/document/8884088/Millimeter wavemassive MIMOrelayhybrid beamformingsum rate
collection DOAJ
language English
format Article
sources DOAJ
author Yang Zhang
Jianhe Du
Yuanzhi Chen
Meng Han
Xingwang Li
spellingShingle Yang Zhang
Jianhe Du
Yuanzhi Chen
Meng Han
Xingwang Li
Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems
IEEE Access
Millimeter wave
massive MIMO
relay
hybrid beamforming
sum rate
author_facet Yang Zhang
Jianhe Du
Yuanzhi Chen
Meng Han
Xingwang Li
author_sort Yang Zhang
title Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems
title_short Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems
title_full Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems
title_fullStr Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems
title_full_unstemmed Optimal Hybrid Beamforming Design for Millimeter-Wave Massive Multi-User MIMO Relay Systems
title_sort optimal hybrid beamforming design for millimeter-wave massive multi-user mimo relay systems
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2019-01-01
description As a promising technology in the next generation mobile network, millimeter-wave (mmWave) communication can mitigate the spectrum crunch of improving the network capacity by exploiting the large underutilized spectrum bands of the mmWave frequencies. The hybrid (analog/digital) beamforming of multi-data streams are widely used to further the spectrum efficiency of mmWave relay system when faced with the complex environment or long distance communication. This paper investigates the hybrid beamforming scheme for the decode-and-forward (DF) mmWave massive multiple-input multiple-output (MIMO) relay system with mixed structure and full-connected structure. We optimize hybrid beamforming of relay system by maximizing the sum rate of the overall system as an objective function. To reduce the computational complexity, we reformulate the original problem as two single-hop mmWave MIMO sum-rate maximization subproblems. Then, the piecewise successive approximation method is proposed based on the criterion which jointly designs the analog and digital beamforming stages by trying to avoid the loss of information at each stage. The hybrid beamforming of the two subproblems can be solved by the proposed scheme united with the idea of successive interference cancelation (SIC), the baseband block diagonalization (BD) scheme, and waterfilling power allocation method. Finally, simulation results confirm that the proposed optimal method can achieve good performance in hybrid beamforming design of relay system with both mixed and full-connected structures.
topic Millimeter wave
massive MIMO
relay
hybrid beamforming
sum rate
url https://ieeexplore.ieee.org/document/8884088/
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AT jianhedu optimalhybridbeamformingdesignformillimeterwavemassivemultiusermimorelaysystems
AT yuanzhichen optimalhybridbeamformingdesignformillimeterwavemassivemultiusermimorelaysystems
AT menghan optimalhybridbeamformingdesignformillimeterwavemassivemultiusermimorelaysystems
AT xingwangli optimalhybridbeamformingdesignformillimeterwavemassivemultiusermimorelaysystems
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