Channel Measurement and Path-Loss Characterization for Low-Terahertz Indoor Scenarios

by   Jia He, et al.

TeraHertz (THz) communications are envisioned as a promising technology, owing to its unprecedented multi-GHz bandwidth. In this paper, wideband channel measurement campaigns at 140 GHz and 220 GHz are conducted in indoor scenarios including a meeting room and an office room. Directional antennas are utilized and rotated for resolving the multi-path components (MPCs) in the angular domain. Comparable path loss values are achieved in the 140 and 220 GHz bands. To investigate the large-scale fading characteristics for indoor THz communications, single-band close-in path loss models are developed. To further analyze the dependency on the frequency, two multi-band path loss models are analyzed, i.e., alpha-beta-gamma (ABG) and multi-frequency CI model with a frequency-weighted path loss exponent (CIF), between which the ABG model demonstrates a better fit with the measured data. Moreover, a coherent beam combination that constructively sums the signal amplitudes from various arrival directions can significantly reduce the path loss, in contrast with a non-coherent beam combination.



page 2


Channel Measurement, Characterization and Modeling for Terahertz Indoor Communications Above 200 GHz

Terahertz (THz) communications are envisioned as a promising technology ...

Channel Measurement and Characterization with Modified SAGE Algorithm in an Indoor Corridor at 300 GHz

The much higher frequencies in the Terahertz (THz) band prevent the effe...

Channel Measurement and Ray-Tracing-Statistical Hybrid Modeling for Low-Terahertz Indoor Communications

TeraHertz (THz) communications are envisioned as a promising technology,...

mmWave Communications for Indoor Dense Spaces: Ray-Tracing Based Channel Characterization and Performance Comparison

In this paper, the indoor dense space (IDS) channel at 28 GHz is charact...

Indoor Wireless Channel Properties at Millimeter Wave and Sub-Terahertz Frequencies

This paper provides indoor reflection, scattering, transmission, and lar...

Path loss model modification for various gains and directions of antennas

Emerging telecommunication technologies like 5G, green communications, a...

Improvement of Indoor Radio Coverage at 60 GHz in NLOS Configuration

In the current development of new technologies, the world of communicati...
This week in AI

Get the week's most popular data science and artificial intelligence research sent straight to your inbox every Saturday.