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 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 colocated CAPA (C CAPA) cases, while maintaining the same total aperture size and transmission power.
Keywords
Cite
@article{arxiv.2602.21096,
title = {Distributed Continuous Aperture Arrays for Multiuser SWIPT},
author = {Muhammad Zeeshan Mumtaz and Mohammadali Mohammadi and Hien Quoc Ngo and Michail Matthaiou},
journal= {arXiv preprint arXiv:2602.21096},
year = {2026}
}
Comments
The paper has been accepted for presentation at IEEE International Conference on Communications (ICC), 24 to 28 May 2026