Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off

Waqas Bin Abbas; Geoff  Hilton; Angela Doufexi; Mark A Beach

doi:10.1109/WCNC61545.2025.10978673

Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off

Waqas Bin Abbas, Geoff Hilton, Angela Doufexi, Mark A Beach

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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Abstract

Uniform planar arrays (UPAs) are widely employed in practical systems, yet the study of antenna selection for UPAs remains limited. In particular, the interplay between selected antenna subsets and directivity has been overlooked in the existing literature. This paper addresses this by exploring how different subsets of selected antennas affect directivity and developing effective antenna selection strategies for UPA with a rectangular lattice. Our findings reveal that different subsets of selected antennas can lead to significantly different values for directivity, influencing selection outcomes compared to scenarios where directivity is not considered. Furthermore, we propose and compare four antenna selection strategies: 1) Column Selection (RS), 2) Row Selection (CS), 3) Full Aperture Greedy Selection (FAGS), and 4) Hybrid Initialization Binary Particle Swarm Optimization (HBPSO). With careful initialization of the particles, HBPSO achieves a spectral efficiency performance close to exhaustive search and surpasses other strategies. Moreover, incorporating directivity into the selection process significantly affects the performance of these strategies.

Original language	English
Title of host publication	2025 IEEE Wireless Communications and Networking Conference (WCNC)
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	6
ISBN (Electronic)	9798350368369
ISBN (Print)	9798350368376
DOIs	https://doi.org/10.1109/WCNC61545.2025.10978673
Publication status	Published - 9 May 2025
Event	IEEE Wireless Communications and Networking Conference: 6G Horizons: Bridging Beyond Wireless - Mico Milano Congressi, Milan, Italy Duration: 24 Mar 2025 → 27 Mar 2025 https://wcnc2025.ieee-wcnc.org/

Publication series

Name	IEEE Conference on Wireless Communications and Networking
Publisher	IEEE
ISSN (Print)	1525-3511
ISSN (Electronic)	1558-2612

Conference

Conference	IEEE Wireless Communications and Networking Conference
Abbreviated title	IEEE WCNC
Country/Territory	Italy
City	Milan
Period	24/03/25 → 27/03/25
Internet address	https://wcnc2025.ieee-wcnc.org/

Bibliographical note

Publisher Copyright:
© 2025 IEEE.

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10.1109/WCNC61545.2025.10978673

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This is the accepted author manuscript (AAM) of the article which has been made Open Access under the University of Bristol's Scholarly Works Policy. The final published version (Version of Record) can be found on the publisher's website. The copyright of any third-party content, such as images, remains with the copyright holder.
Accepted author manuscript, 509 KBLicence: CC BY

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Abbas, W. B., Hilton, G., Doufexi, A., & Beach, M. A. (2025). Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off. In 2025 IEEE Wireless Communications and Networking Conference (WCNC) (IEEE Conference on Wireless Communications and Networking). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/WCNC61545.2025.10978673

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title = "Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off",

abstract = "Uniform planar arrays (UPAs) are widely employed in practical systems, yet the study of antenna selection for UPAs remains limited. In particular, the interplay between selected antenna subsets and directivity has been overlooked in the existing literature. This paper addresses this by exploring how different subsets of selected antennas affect directivity and developing effective antenna selection strategies for UPA with a rectangular lattice. Our findings reveal that different subsets of selected antennas can lead to significantly different values for directivity, influencing selection outcomes compared to scenarios where directivity is not considered. Furthermore, we propose and compare four antenna selection strategies: 1) Column Selection (RS), 2) Row Selection (CS), 3) Full Aperture Greedy Selection (FAGS), and 4) Hybrid Initialization Binary Particle Swarm Optimization (HBPSO). With careful initialization of the particles, HBPSO achieves a spectral efficiency performance close to exhaustive search and surpasses other strategies. Moreover, incorporating directivity into the selection process significantly affects the performance of these strategies.",

author = "Abbas, \{Waqas Bin\} and Geoff Hilton and Angela Doufexi and Beach, \{Mark A\}",

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year = "2025",

month = may,

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doi = "10.1109/WCNC61545.2025.10978673",

language = "English",

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series = "IEEE Conference on Wireless Communications and Networking",

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Abbas, WB , Hilton, G , Doufexi, A & Beach, MA 2025, Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off. in 2025 IEEE Wireless Communications and Networking Conference (WCNC). IEEE Conference on Wireless Communications and Networking, Institute of Electrical and Electronics Engineers (IEEE), IEEE Wireless Communications and Networking Conference, Milan, Italy, 24/03/25. https://doi.org/10.1109/WCNC61545.2025.10978673

Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off. / Abbas, Waqas Bin ; Hilton, Geoff ; Doufexi, Angela et al.
2025 IEEE Wireless Communications and Networking Conference (WCNC). Institute of Electrical and Electronics Engineers (IEEE), 2025. (IEEE Conference on Wireless Communications and Networking).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Massive MIMO Systems with Uniform Planar Arrays

T2 - IEEE Wireless Communications and Networking Conference

AU - Abbas, Waqas Bin

AU - Hilton, Geoff

AU - Doufexi, Angela

AU - Beach, Mark A

PY - 2025/5/9

Y1 - 2025/5/9

N2 - Uniform planar arrays (UPAs) are widely employed in practical systems, yet the study of antenna selection for UPAs remains limited. In particular, the interplay between selected antenna subsets and directivity has been overlooked in the existing literature. This paper addresses this by exploring how different subsets of selected antennas affect directivity and developing effective antenna selection strategies for UPA with a rectangular lattice. Our findings reveal that different subsets of selected antennas can lead to significantly different values for directivity, influencing selection outcomes compared to scenarios where directivity is not considered. Furthermore, we propose and compare four antenna selection strategies: 1) Column Selection (RS), 2) Row Selection (CS), 3) Full Aperture Greedy Selection (FAGS), and 4) Hybrid Initialization Binary Particle Swarm Optimization (HBPSO). With careful initialization of the particles, HBPSO achieves a spectral efficiency performance close to exhaustive search and surpasses other strategies. Moreover, incorporating directivity into the selection process significantly affects the performance of these strategies.

AB - Uniform planar arrays (UPAs) are widely employed in practical systems, yet the study of antenna selection for UPAs remains limited. In particular, the interplay between selected antenna subsets and directivity has been overlooked in the existing literature. This paper addresses this by exploring how different subsets of selected antennas affect directivity and developing effective antenna selection strategies for UPA with a rectangular lattice. Our findings reveal that different subsets of selected antennas can lead to significantly different values for directivity, influencing selection outcomes compared to scenarios where directivity is not considered. Furthermore, we propose and compare four antenna selection strategies: 1) Column Selection (RS), 2) Row Selection (CS), 3) Full Aperture Greedy Selection (FAGS), and 4) Hybrid Initialization Binary Particle Swarm Optimization (HBPSO). With careful initialization of the particles, HBPSO achieves a spectral efficiency performance close to exhaustive search and surpasses other strategies. Moreover, incorporating directivity into the selection process significantly affects the performance of these strategies.

UR - https://wcnc2025.ieee-wcnc.org/

U2 - 10.1109/WCNC61545.2025.10978673

DO - 10.1109/WCNC61545.2025.10978673

M3 - Conference Contribution (Conference Proceeding)

SN - 9798350368376

T3 - IEEE Conference on Wireless Communications and Networking

BT - 2025 IEEE Wireless Communications and Networking Conference (WCNC)

PB - Institute of Electrical and Electronics Engineers (IEEE)

Y2 - 24 March 2025 through 27 March 2025

ER -

Massive MIMO Systems with Uniform Planar Arrays: Antenna Selection and Directivity Trade-Off

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