Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems

Minjung Cho; Hyukyeon Lee; Kyeongmook Oh; Jaeseok Kim

doi:10.1109/MICC48337.2019.9037578

Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems

Minjung Cho, Hyukyeon Lee, Kyeongmook Oh, Jaeseok Kim

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

For next generation wireless networks, hybrid precoding has overcome high path-loss issue in millimeter wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) communication system. In this paper, we propose a fully connected hybrid precoding scheme for downlink mmWave MU-MIMO systems. In the first step, we design the unconstrained fully digital precoder. To eliminate inter-user-interference (IUI), we use projection matrices on the users' null spaces with employing the information about the angle of departure (AoD). In the second step, we calculate the baseband precoder and radio frequency (RF) precoder through matrix decomposition (MD) of the unconstrained precoder. While the proposed algorithm reduces the dominant computational complexity by approximately 30%, the total sum rate of the simulation is close to 99% as compared with iterative matrix decomposition (IMD-) aided block-diagonalization (BD) algorithm. In addition, the proposed hybrid precoder shows a good performance in a multi-streams environment, and outperforms the traditional BD based scheme by the sum rate of approximately 50%.

Original language	English
Title of host publication	2019 14th IEEE Malaysia International Conference on Communication
Subtitle of host publication	Emerging Technologies in IoE and 5G, MICC 2019
Editors	Gan Kok Beng, Norhana Arsad, Mohd Fais Mansor
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	91-95
Number of pages	5
ISBN (Electronic)	9781728147376
DOIs	https://doi.org/10.1109/MICC48337.2019.9037578
Publication status	Published - 2019 Dec
Event	14th IEEE Malaysia International Conference on Communication, MICC 2019 - Selangor, Malaysia Duration: 2019 Dec 2 → 2019 Dec 4

Publication series

Name	2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019

Conference

Conference	14th IEEE Malaysia International Conference on Communication, MICC 2019
Country/Territory	Malaysia
City	Selangor
Period	19/12/2 → 19/12/4

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Hardware and Architecture
Signal Processing
Atomic and Molecular Physics, and Optics

Access to Document

10.1109/MICC48337.2019.9037578

Cite this

Cho, M., Lee, H., Oh, K., & Kim, J. (2019). Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems. In G. K. Beng, N. Arsad, & M. F. Mansor (Eds.), 2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019 (pp. 91-95). [9037578] (2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MICC48337.2019.9037578

Cho, Minjung ; Lee, Hyukyeon ; Oh, Kyeongmook et al. / Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems. 2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019. editor / Gan Kok Beng ; Norhana Arsad ; Mohd Fais Mansor. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 91-95 (2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019).

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title = "Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems",

abstract = "For next generation wireless networks, hybrid precoding has overcome high path-loss issue in millimeter wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) communication system. In this paper, we propose a fully connected hybrid precoding scheme for downlink mmWave MU-MIMO systems. In the first step, we design the unconstrained fully digital precoder. To eliminate inter-user-interference (IUI), we use projection matrices on the users' null spaces with employing the information about the angle of departure (AoD). In the second step, we calculate the baseband precoder and radio frequency (RF) precoder through matrix decomposition (MD) of the unconstrained precoder. While the proposed algorithm reduces the dominant computational complexity by approximately 30%, the total sum rate of the simulation is close to 99% as compared with iterative matrix decomposition (IMD-) aided block-diagonalization (BD) algorithm. In addition, the proposed hybrid precoder shows a good performance in a multi-streams environment, and outperforms the traditional BD based scheme by the sum rate of approximately 50%.",

author = "Minjung Cho and Hyukyeon Lee and Kyeongmook Oh and Jaeseok Kim",

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Cho, M, Lee, H, Oh, K & Kim, J 2019, Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems. in GK Beng, N Arsad & MF Mansor (eds), 2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019., 9037578, 2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019, Institute of Electrical and Electronics Engineers Inc., pp. 91-95, 14th IEEE Malaysia International Conference on Communication, MICC 2019, Selangor, Malaysia, 19/12/2. https://doi.org/10.1109/MICC48337.2019.9037578

Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems. / Cho, Minjung; Lee, Hyukyeon; Oh, Kyeongmook et al.

2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019. ed. / Gan Kok Beng; Norhana Arsad; Mohd Fais Mansor. Institute of Electrical and Electronics Engineers Inc., 2019. p. 91-95 9037578 (2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - For next generation wireless networks, hybrid precoding has overcome high path-loss issue in millimeter wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) communication system. In this paper, we propose a fully connected hybrid precoding scheme for downlink mmWave MU-MIMO systems. In the first step, we design the unconstrained fully digital precoder. To eliminate inter-user-interference (IUI), we use projection matrices on the users' null spaces with employing the information about the angle of departure (AoD). In the second step, we calculate the baseband precoder and radio frequency (RF) precoder through matrix decomposition (MD) of the unconstrained precoder. While the proposed algorithm reduces the dominant computational complexity by approximately 30%, the total sum rate of the simulation is close to 99% as compared with iterative matrix decomposition (IMD-) aided block-diagonalization (BD) algorithm. In addition, the proposed hybrid precoder shows a good performance in a multi-streams environment, and outperforms the traditional BD based scheme by the sum rate of approximately 50%.

AB - For next generation wireless networks, hybrid precoding has overcome high path-loss issue in millimeter wave (mmWave) multi-user multiple-input multiple-output (MU-MIMO) communication system. In this paper, we propose a fully connected hybrid precoding scheme for downlink mmWave MU-MIMO systems. In the first step, we design the unconstrained fully digital precoder. To eliminate inter-user-interference (IUI), we use projection matrices on the users' null spaces with employing the information about the angle of departure (AoD). In the second step, we calculate the baseband precoder and radio frequency (RF) precoder through matrix decomposition (MD) of the unconstrained precoder. While the proposed algorithm reduces the dominant computational complexity by approximately 30%, the total sum rate of the simulation is close to 99% as compared with iterative matrix decomposition (IMD-) aided block-diagonalization (BD) algorithm. In addition, the proposed hybrid precoder shows a good performance in a multi-streams environment, and outperforms the traditional BD based scheme by the sum rate of approximately 50%.

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Cho M, Lee H, Oh K, Kim J. Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems. In Beng GK, Arsad N, Mansor MF, editors, 2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 91-95. 9037578. (2019 14th IEEE Malaysia International Conference on Communication: Emerging Technologies in IoE and 5G, MICC 2019). doi: 10.1109/MICC48337.2019.9037578

Hybrid precoding using projection-aided block diagonalization for mmWave MU-MIMO systems

Abstract

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