Distributed continuous aperture arrays for multiuser SWIPT

Muhammad Zeeshan Mumtaz; Mohammad Mohammadi; Hien-Quoc Ngo; Michalis Matthaiou

doi:10.1109/ICC59461.2026.11588235

Distributed continuous aperture arrays for multiuser SWIPT

School of Electronics, Electrical Engineering and Computer Science

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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Abstract

This paper proposes a distributed continuous aperture array (D-CAPA) to support simultaneous wireless information and power transfer (SWIPT) to multiple information users (IUs) and energy users (EUs). Each metasurface supports continuous surface currents that radiate electromagnetic (EM) waves for information and energy transmission to the users. These waves propagate through continuous EM channels characterized by the dyadic Green’s function. We formulate a system power consumption (PC) minimization problem subject to
spectral efficiency and energy harvesting quality-of-service (QoS) requirements, where the QoS requirements are derived under the equal power allocation (EPA) scheme. An efficient two-layer optimization algorithm is developed to solve this problem by optimizing the power allocation subject to the QoS violation penalties using augmented Lagrangian transformation. Our numerical results show that well-optimized current distributions over each metasurface in the proposed D-CAPA achieve up to 65% and 61% reductions in overall system PC compared to the EPA and co-located CAPA (C-CAPA) cases, while maintaining the same
total aperture size and transmission power.

Original language	English
Title of host publication	2026 IEEE International Conference on Communications (ICC): Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Number of pages	6
DOIs	https://doi.org/10.1109/ICC59461.2026.11588235
Publication status	Published - 14 Jul 2026
Event	IEEE International Conference on Communications (ICC 2026): ICC 2026 - Scotland Duration: 24 May 2026 → 28 May 2026

Publication series

Name	IEEE International Conference on Communications
Publisher	IEEE
ISSN (Print)	1550-3607
ISSN (Electronic)	1938-1883

Conference

Conference	IEEE International Conference on Communications (ICC 2026)
Period	24/05/2026 → 28/05/2026

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This work is licensed under Queen’s Research Publications and Copyright Policy. 

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 8 Decent Work and Economic Growth
SDG 12 Responsible Consumption and Production

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10.1109/ICC59461.2026.11588235Licence: Unspecified

Distributed continuous aperture arrays for multiuser SWIPT
© 2026 The Authors. This is an accepted manuscript distributed under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Accepted author manuscript, 482 KBLicence: CC BY

Wireless power transfer and information transmission in advanced MIMO systems
Mumtaz, M. Z. (Author), Matthaiou, M. (Supervisor) & Ngo, H. Q. (Supervisor), Jul 2026
Student thesis: Doctoral Thesis › Doctor of Philosophy (Thesis with Publications)

Cite this

@inproceedings{747a9925eb4b47348ed7d755b05df7c3,

title = "Distributed continuous aperture arrays for multiuser SWIPT",

abstract = "This paper proposes a distributed continuous aperture array (D-CAPA) to support simultaneous wireless information and power transfer (SWIPT) to multiple information users (IUs) and energy users (EUs). Each metasurface supports continuous surface currents that radiate electromagnetic (EM) waves for information and energy transmission to the users. These waves propagate through continuous EM channels characterized by the dyadic Green{\textquoteright}s function. We formulate a system power consumption (PC) minimization problem subject to spectral efficiency and energy harvesting quality-of-service (QoS) requirements, where the QoS requirements are derived under the equal power allocation (EPA) scheme. An efficient two-layer optimization algorithm is developed to solve this problem by optimizing the power allocation subject to the QoS violation penalties using augmented Lagrangian transformation. Our numerical results show that well-optimized current distributions over each metasurface in the proposed D-CAPA achieve up to 65\% and 61\% reductions in overall system PC compared to the EPA and co-located CAPA (C-CAPA) cases, while maintaining the same total aperture size and transmission power.",

author = "Mumtaz, \{Muhammad Zeeshan\} and Mohammad Mohammadi and Hien-Quoc Ngo and Michalis Matthaiou",

year = "2026",

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language = "English",

series = "IEEE International Conference on Communications",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2026 IEEE International Conference on Communications (ICC): Proceedings",

address = "United States",

note = "IEEE International Conference on Communications (ICC 2026) : ICC 2026 ; Conference date: 24-05-2026 Through 28-05-2026",

}

Mumtaz, MZ , Mohammadi, M , Ngo, H-Q & Matthaiou, M 2026, Distributed continuous aperture arrays for multiuser SWIPT. in 2026 IEEE International Conference on Communications (ICC): Proceedings. IEEE International Conference on Communications, Institute of Electrical and Electronics Engineers Inc., IEEE International Conference on Communications (ICC 2026), 24/05/2026. https://doi.org/10.1109/ICC59461.2026.11588235

Distributed continuous aperture arrays for multiuser SWIPT. / Mumtaz, Muhammad Zeeshan ; Mohammadi, Mohammad ; Ngo, Hien-Quoc et al.
2026 IEEE International Conference on Communications (ICC): Proceedings. Institute of Electrical and Electronics Engineers Inc., 2026. (IEEE International Conference on Communications).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Distributed continuous aperture arrays for multiuser SWIPT

AU - Mumtaz, Muhammad Zeeshan

AU - Mohammadi, Mohammad

AU - Ngo, Hien-Quoc

AU - Matthaiou, Michalis

PY - 2026/7/14

Y1 - 2026/7/14

N2 - This paper proposes a distributed continuous aperture array (D-CAPA) to support simultaneous wireless information and power transfer (SWIPT) to multiple information users (IUs) and energy users (EUs). Each metasurface supports continuous surface currents that radiate electromagnetic (EM) waves for information and energy transmission to the users. These waves propagate through continuous EM channels characterized by the dyadic Green’s function. We formulate a system power consumption (PC) minimization problem subject to spectral efficiency and energy harvesting quality-of-service (QoS) requirements, where the QoS requirements are derived under the equal power allocation (EPA) scheme. An efficient two-layer optimization algorithm is developed to solve this problem by optimizing the power allocation subject to the QoS violation penalties using augmented Lagrangian transformation. Our numerical results show that well-optimized current distributions over each metasurface in the proposed D-CAPA achieve up to 65% and 61% reductions in overall system PC compared to the EPA and co-located CAPA (C-CAPA) cases, while maintaining the same total aperture size and transmission power.

AB - This paper proposes a distributed continuous aperture array (D-CAPA) to support simultaneous wireless information and power transfer (SWIPT) to multiple information users (IUs) and energy users (EUs). Each metasurface supports continuous surface currents that radiate electromagnetic (EM) waves for information and energy transmission to the users. These waves propagate through continuous EM channels characterized by the dyadic Green’s function. We formulate a system power consumption (PC) minimization problem subject to spectral efficiency and energy harvesting quality-of-service (QoS) requirements, where the QoS requirements are derived under the equal power allocation (EPA) scheme. An efficient two-layer optimization algorithm is developed to solve this problem by optimizing the power allocation subject to the QoS violation penalties using augmented Lagrangian transformation. Our numerical results show that well-optimized current distributions over each metasurface in the proposed D-CAPA achieve up to 65% and 61% reductions in overall system PC compared to the EPA and co-located CAPA (C-CAPA) cases, while maintaining the same total aperture size and transmission power.

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M3 - Conference contribution

T3 - IEEE International Conference on Communications

BT - 2026 IEEE International Conference on Communications (ICC): Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - IEEE International Conference on Communications (ICC 2026)

Y2 - 24 May 2026 through 28 May 2026

ER -

Distributed continuous aperture arrays for multiuser SWIPT

Abstract

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Student theses

Wireless power transfer and information transmission in advanced MIMO systems

Cite this