Sub-Terahertz Wireless Coverage Analysis at 142 GHz in Urban Microcell

TL;DR

This study evaluates the coverage and spectral efficiency of sub-THz 142 GHz urban microcell systems through realistic simulations, demonstrating multi-cell coverage and high data rates in urban environments.

Contribution

It provides the first realistic channel-based analysis of sub-THz coverage and performance in urban microcells at 142 GHz, including multi-cell system insights.

Findings

Single-cell coverage radius of 200 m at 142 GHz

Seven-cell system coverage radius of 400 m

Achieves 4.5 Gbps downlink and 410 Mbps uplink data rates

Abstract

Small-cell cellular base stations are going to be used for mmWave and sub-THz communication systems to provide multi-Gbps data rates and reliable coverage to mobile users. This paper analyzes the base station coverage of sub-THz communication systems and the system performance in terms of spectral efficiency through Monte Carlo simulations for both single-cell and multi-cell cases. The simulations are based on realistic channel models derived from outdoor field measurements at 142 GHz in urban microcell (UMi) environments conducted in downtown Brooklyn, New York. The single-cell base station can provide a downlink coverage area with a radius of 200 m and the 7-cell system can provide a downlink coverage area with a radius of 400 m at 142 GHz. Using a 1 GHz downlink bandwidth and 100 MHz uplink bandwidth, the 7-cell system can provide about 4.5 Gbps downlink average data rate and 410 Mbps uplink average data rate at 142 GHz.