Work

Novel Leakage-Based Capacity Enhancement Scheme for Multi-User OAM Communications

Year: 2025

Type: article

Abstract: This paper explores a novel leakage-based capacity enhancement scheme in an orbital angular momentum (OAM) integrated multiuser MIMO system, where the leakage refers to the signal interference affecting other users. We aim to optimize a precoder using signal-to-leakage-and-noise ratio (SLNR) to maximize capacity and minimize interference and noise. For OAM modes generated using a uniform circular array, the proposed SLNR is compared with regularized zero-forcing (RZF), block-diagonalization (BD), and zero-forcing (ZF) precodings applied in indoor multiuser OAM-MIMO systems. Simulation results show that the SLNR-based multiuser OAM-MIMO outperforms the traditional multiuser MIMO, RZF, BD, and ZF-based multiuser OAM-MIMO in the context of capacity.

Source: IEEE Access

DOI: 10.1109/access.2025.3561451

Authors: Aye Yadanar Win, Merhawit Berhane Teklu, Yeon Ho Chung

Institution: Pukyong National University

Language: English

Topic: Orbital Angular Momentum in Optics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,075

Funder: National Research Foundation of Korea