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Millimeter wave hybrid beamforming with DFT-MUB aided precoder codebook design

Millimeter wave hybrid beamforming with DFT-MUB aided precoder codebook design
Millimeter wave hybrid beamforming with DFT-MUB aided precoder codebook design

The millimeter wave (mmWave) frequency band offers substantial hitherto unused spectral resources for future wireless communication systems in order to meet the increasing capacity demand. However, mmWave frequencies suffer from high propagation losses, which may be mitigated by directional beamforming in addition to baseband precoding. This is usually referred to as hybrid beamforming. In this paper, we investigate the so-called discrete Fourier transform-mutually unbiased bases (DFT-MUB) aided codebook design conceived for limitedfeedback mmWave systems, where the MUB aided codebook is applied in the baseband, while the DFT codebook is invoked for RF analog phase shifters. We demonstrate that our DFTMUB codebook design performs similarly to the optimal digital precoding matrix, where the precoder is selected as the right singular matrix of the channel. However, our solution significantly reduces the search complexity in the baseband, while performing within 2.5 dB from the optimal digital precoder.

1-5
Satyanarayana, K.
a99ddf7f-e3ce-4b3b-93dd-c974b26e51ee
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Kuo, Ping Heng
dd2534cc-46cc-4b58-b45e-a05381d1ad18
Mourad, Alain
7a39422e-4c9b-4f76-8653-8551ec8cfb4b
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Satyanarayana, K.
a99ddf7f-e3ce-4b3b-93dd-c974b26e51ee
El-Hajjar, Mohammed
3a829028-a427-4123-b885-2bab81a44b6f
Kuo, Ping Heng
dd2534cc-46cc-4b58-b45e-a05381d1ad18
Mourad, Alain
7a39422e-4c9b-4f76-8653-8551ec8cfb4b
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Satyanarayana, K., El-Hajjar, Mohammed, Kuo, Ping Heng, Mourad, Alain and Hanzo, Lajos (2018) Millimeter wave hybrid beamforming with DFT-MUB aided precoder codebook design. 86th IEEE Vehicular Technology Conference, VTC Fall 2017, Toronto, Canada. 24 - 27 Sep 2017. 5 pp, pp. 1-5. (doi:10.1109/VTCFall.2017.8288023).

Record type: Conference or Workshop Item (Paper)

Abstract

The millimeter wave (mmWave) frequency band offers substantial hitherto unused spectral resources for future wireless communication systems in order to meet the increasing capacity demand. However, mmWave frequencies suffer from high propagation losses, which may be mitigated by directional beamforming in addition to baseband precoding. This is usually referred to as hybrid beamforming. In this paper, we investigate the so-called discrete Fourier transform-mutually unbiased bases (DFT-MUB) aided codebook design conceived for limitedfeedback mmWave systems, where the MUB aided codebook is applied in the baseband, while the DFT codebook is invoked for RF analog phase shifters. We demonstrate that our DFTMUB codebook design performs similarly to the optimal digital precoding matrix, where the precoder is selected as the right singular matrix of the channel. However, our solution significantly reduces the search complexity in the baseband, while performing within 2.5 dB from the optimal digital precoder.

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More information

Accepted/In Press date: 16 May 2017
Published date: 8 February 2018
Venue - Dates: 86th IEEE Vehicular Technology Conference, VTC Fall 2017, Toronto, Canada, 2017-09-24 - 2017-09-27
Organisations: Electronics & Computer Science, Southampton Wireless Group

Identifiers

Local EPrints ID: 411011
URI: https://eprints.soton.ac.uk/id/eprint/411011
PURE UUID: bd9bfd4b-02e8-4208-be79-11ff663b15ce
ORCID for Mohammed El-Hajjar: ORCID iD orcid.org/0000-0002-7987-1401
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 13 Jun 2017 16:31
Last modified: 28 Apr 2018 04:01

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Contributors

Author: K. Satyanarayana
Author: Mohammed El-Hajjar ORCID iD
Author: Ping Heng Kuo
Author: Alain Mourad
Author: Lajos Hanzo ORCID iD

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