eprintid: 10189477
rev_number: 7
eprint_status: archive
userid: 699
dir: disk0/10/18/94/77
datestamp: 2024-03-21 17:47:21
lastmod: 2024-03-21 17:47:21
status_changed: 2024-03-21 17:47:21
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Meng, Chenfeng
creators_name: Zhang, Yongwei
creators_name: Temiz, Murat
creators_name: El-Makadema, Ahmed
title: A Multiobjective Array Beamforming Method for Arrays of Flexible Shape
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
keywords: array; beamforming; interference suppression; null-steering; particle swarm optimization; pattern synthesis
note: Copyright © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
abstract: High-performance beamforming incorporating multiple objectives for large-scale antenna arrays becomes increasingly important to improve the capacity and efficiency of wireless communication systems. The speed of synthesizing a desired beam pattern is critical in wireless communications systems to adapt to highly dynamic wireless channels. A modified particle swarm optimization (PSO) algorithm for synthesizing array beam patterns is proposed in this study. The initial positions of particles in PSO are designated following a Taylor distribution instead of being given uniformly distributed random values as in the classical PSO algorithm. The fitness functions are defined to include multiple objectives represented by producing multiple main lobes with customized deep and broadened nulls. Several scenarios have been established to examine the feasibility of the proposed algorithm. Moreover, the performance of the proposed algorithm is compared with those of the ones based on the classical PSO. A significant performance improvement for obtaining beamforming coefficients has been achieved. The robustness of the proposed algorithm is demonstrated further by applying it to a finite array on a curved surface for beamforming.
date: 2024-02-02
date_type: published
publisher: MDPI
official_url: https://doi.org/10.3390/electronics13040752
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2255541
doi: 10.3390/electronics13040752
lyricists_name: Temiz, Murat
lyricists_id: MTEMI29
actors_name: Flynn, Bernadette
actors_id: BFFLY94
actors_role: owner
funding_acknowledgements: [National Natural Science Foundation of China]
full_text_status: public
publication: Electronics
volume: 13
number: 4
article_number: 752
pages: 24
issn: 2079-9292
citation:        Meng, Chenfeng;    Zhang, Yongwei;    Temiz, Murat;    El-Makadema, Ahmed;      (2024)    A Multiobjective Array Beamforming Method for Arrays of Flexible Shape.                   Electronics , 13  (4)    , Article 752.  10.3390/electronics13040752 <https://doi.org/10.3390/electronics13040752>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10189477/1/electronics-13-00752-v2.pdf