2D-AOA estimation and tilt angle adaptation for 3d beamforming interference reduction in massive MIMO

Ehab Ali, Nor Fadzilah Abdullah, Mahamod Ismail, Rosdiadee Nordin, M. H. Mahzan, Mohammed Balfaqih

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a new method based on a 2D Angle of Arrival (2D-AOA) estimation that employs 3D beamforming to eliminate the effect of interference in a Massive MIMO (M-MIMO) system. The interferences are the results of pilot contamination and spatial overlapping from nearby users. High resolution Azimuth and Elevation angles of the detected signals from Uniform Rectangular Array (URA) are used to separate the desired signal from the interfering ones without causing any change in the pilot construction of training signals. Additionally, tilt angle adaptation is employed at the base station to maximize the spectral efficiency of multi-cell M- MIMO. The performance of the proposed method is evaluated and compared with that of the conventional methods of 2D beamforming in terms of achievable sum rate. Results of the simulation demonstrate that the 3D beamforming achieved a 55% sum rate gain due to the elimination of both pilot contamination and spatial overlapping in comparison to the 24% sum rate gain achieved via the 2D beamforming method which only eliminates pilot contamination. This shows the potential of the proposed method in eliminating a large proportion of cell interference.

Original languageEnglish
Title of host publication2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728112176
DOIs
Publication statusPublished - 1 Apr 2019
Event89th IEEE Vehicular Technology Conference, VTC Spring 2019 - Kuala Lumpur, Malaysia
Duration: 28 Apr 20191 May 2019

Publication series

NameIEEE Vehicular Technology Conference
Volume2019-April
ISSN (Print)1550-2252

Conference

Conference89th IEEE Vehicular Technology Conference, VTC Spring 2019
CountryMalaysia
CityKuala Lumpur
Period28/4/191/5/19

Fingerprint

Angle of Arrival
Beamforming
Tilt
MIMO systems
Multiple-input multiple-output (MIMO)
Interference
Angle
Contamination
Overlapping
Angle of elevation
Eliminate
Base stations
MIMO Systems
Spectral Efficiency
Azimuth
Cell
Elimination
Proportion
High Resolution
Maximise

Keywords

  • 2D Angle of Arrival
  • 2D-Fourier Domain Line Search MUSIC
  • 3D Beamforming
  • Dynamic tilt angle
  • Massive MIMO

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Ali, E., Abdullah, N. F., Ismail, M., Nordin, R., Mahzan, M. H., & Balfaqih, M. (2019). 2D-AOA estimation and tilt angle adaptation for 3d beamforming interference reduction in massive MIMO. In 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings [8746523] (IEEE Vehicular Technology Conference; Vol. 2019-April). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCSpring.2019.8746523

2D-AOA estimation and tilt angle adaptation for 3d beamforming interference reduction in massive MIMO. / Ali, Ehab; Abdullah, Nor Fadzilah; Ismail, Mahamod; Nordin, Rosdiadee; Mahzan, M. H.; Balfaqih, Mohammed.

2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. 8746523 (IEEE Vehicular Technology Conference; Vol. 2019-April).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ali, E, Abdullah, NF, Ismail, M, Nordin, R, Mahzan, MH & Balfaqih, M 2019, 2D-AOA estimation and tilt angle adaptation for 3d beamforming interference reduction in massive MIMO. in 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings., 8746523, IEEE Vehicular Technology Conference, vol. 2019-April, Institute of Electrical and Electronics Engineers Inc., 89th IEEE Vehicular Technology Conference, VTC Spring 2019, Kuala Lumpur, Malaysia, 28/4/19. https://doi.org/10.1109/VTCSpring.2019.8746523
Ali E, Abdullah NF, Ismail M, Nordin R, Mahzan MH, Balfaqih M. 2D-AOA estimation and tilt angle adaptation for 3d beamforming interference reduction in massive MIMO. In 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. 8746523. (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VTCSpring.2019.8746523
Ali, Ehab ; Abdullah, Nor Fadzilah ; Ismail, Mahamod ; Nordin, Rosdiadee ; Mahzan, M. H. ; Balfaqih, Mohammed. / 2D-AOA estimation and tilt angle adaptation for 3d beamforming interference reduction in massive MIMO. 2019 IEEE 89th Vehicular Technology Conference, VTC Spring 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. (IEEE Vehicular Technology Conference).
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