Antenna array optimisation using semidefinite programming for cellular communications from HAPs

Abstract

Array pattern optimisation based on semidefinite programming (SDP) is proposed to improve the coverage performance of cellular communications from High Altitude Platforms (HAPs). This optimisation, when applied to a linear vertical array of N omnidirectional antenna elements, allows a coverage performance better than that of an array of N narrowbeam aperture antennas forming hexagonal cells on the ground. In addition to the performance enhancement, the HAP antenna payload can be significantly reduced.

Metadata

Item Type:	Article
Authors/Creators:	Xu, Z. Zakharov, Y. https://orcid.org/0000-0002-2193-4334 White, G.
Copyright, Publisher and Additional Information:	This is an author produced version of a paper published in Electronics Letters. Uploaded in accordance with the publisher's self-archiving policy.
Keywords:	engineering,electrical,electronic
Dates:	Published: 18 January 2007
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Electronic Engineering (York)
Depositing User:	Ms Diana Hilmer
Date Deposited:	24 Oct 2007 14:35
Last Modified:	19 Sep 2025 23:23
Published Version:	https://doi.org/10.1049/el:20072947
Status:	Published
Refereed:	Yes
Identification Number:	10.1049/el:20072947
Related URLs:	http://dx.doi.org/10.1049/el:20072947
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:3421

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Antenna array optimisation using semidefinite programming for cellular communications from HAPs

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