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arXiv · 2502.03110

Exploiting Polarization Domain of the IOS for Enhanced Full-Dimensional Transmission

Weiqiao Zhu·Zizhou Zheng·Yang Yang·Huan Huang·Weijun Hao·Xiaofei Jia·Hongliang Zhang
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Abstract

Intelligent omni-surface (IOS), capable of providing service coverage to mobile users (MUs) in a reflective and refractive manner, has recently attracted widespread attention. However, the performance of power-domain IOS-assisted systems is limited by the intimate coupling between the refraction and reflection behavior of IOS elements. In this paper, we introduce the concept of dual-polarized IOS-assisted communication to overcome this challenge. By employing the polarization domain in the design of IOS, full independent refraction and reflection modes can be delivered. We consider a downlink dual-polarized IOS-aided system while also accounting for the leakage between different polarizations. To maximize the sum rate, we formulated a joint base station (BS) digital and IOS analog beamforming problem and proposed an iterative algorithm to solve the nonconvex program. Simulation results validate that dual-polarized IOS significantly enhances the performance than that of the power-domain one.

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Weiqiao Zhu, Zizhou Zheng, Yang Yang, Huan Huang, Weijun Hao, Xiaofei Jia, Hongliang Zhang. 2025-02-05. Exploiting Polarization Domain of the IOS for Enhanced Full-Dimensional Transmission. https://arxiv.org/abs/2502.03110

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