A Spatial-Spectral Interference Model for Millimeter Wave 5G Applications

TL;DR

This paper introduces a spatial-spectral interference model for 5G mmWave networks that accounts for directional antennas, blockages, and spectrum sharing, providing insights into interference behavior and network performance.

Contribution

It presents a novel interference model tailored for mmWave 5G, incorporating spatial and spectral factors, and evaluates network performance through simulations.

Findings

Interference behavior is significantly affected by directional beams and blockages.

The model accurately predicts the average bit error rate in mmWave 5G networks.

Simulation results validate the effectiveness of the proposed interference model.

Abstract

The potential of the millimeter wave (mmWave) band in meeting the ever growing demand for high data rate and capacity in emerging fifth generation (5G) wireless networks is well-established. Since mmWave systems are expected to use highly directional antennas with very focused beams to overcome severe pathloss and shadowing in this band, the nature of signal propagation in mmWave wireless networks may differ from current networks. One factor that is influenced by such propagation characteristics is the interference behavior, which is also impacted by simultaneous use of the unlicensed portion of the spectrum by multiple users. Therefore, considering the propagation characteristics in the mmWave band, we propose a spatial-spectral interference model for 5G mmWave applications, in the presence of Poisson field of blockages and interferers operating in licensed and unlicensed mmWave spectrum. Consequently, the average bit error rate of the network is calculated. Simulation is also carried out to verify the outcomes of the paper.