The New Purity and Capacity Models for the OAM-mmWave Communication Systems under Atmospheric Turbulence

TL;DR

This paper introduces new models for purity and capacity in OAM-mmWave communication systems that account for atmospheric turbulence, revealing its significant impact on system performance and capacity degradation at higher frequencies.

Contribution

The paper proposes the first purity and capacity models for OAM-mmWave systems considering atmospheric turbulence effects, enhancing understanding of turbulence-induced interference.

Findings

Atmospheric turbulence causes significant interference in OAM-mmWave propagation.

Capacity decreases as transmission frequency increases under turbulence.

New models better predict system performance in atmospheric conditions.

Abstract

The orbital angular momentum (OAM) wireless communication technology is widely studied in recent literatures. But the atmospheric turbulence is rarely considered in analyzing the capacity of OAM-based millimeter wave (OAM-mmWave) communication systems. The OAM-mmWave propagated in the atmosphere environments is usually interfered by the atmospheric turbulence, resulting in the crosstalk among OAM channels,capacity degradation, etc. By taking into account the atmospheric turbulence effect, this paper proposes a new purity model and a new capacity model for the OAM-mmWave communication systems. Simulation results indicate that the OAM-mmWave propagation in the atmosphere environments is evidently interfered by atmospheric turbulence, where the capacity of the OAMmmWave communication systems decreases with the increase of the transmission frequency.