DeepAI AI Chat
Log In Sign Up

Terahertz Wireless Channels: A Holistic Survey on Measurement, Modeling, and Analysis

11/08/2021
by   Chong Han, et al.
0

Terahertz (THz) communications are envisioned as a key technology for sixth generation (6G) wireless systems. The study of underlying THz wireless propagation channels provides the foundations for the development of reliable THz communication systems and their applications. This article provides a comprehensive overview of the study of THz wireless channels. First, the three most popular THz channel measurement methodologies, namely, frequency-domain channel measurement based on a vector network analyzer (VNA), time-domain channel measurement based on sliding correlation, and time-domain channel measurement based on THz pulses from time-domain spectroscopy (THz-TDS), are introduced and compared. Current channel measurement systems and measurement campaigns are reviewed. Then, existing channel modeling methodologies are categorized into deterministic, stochastic, and hybrid approaches. State-of-the-art THz channel models are analyzed, and the channel simulators that are based on them are introduced. Next, an in-depth review of channel characteristics in the THz band is presented. Finally, open problems and future research directions for research studies on THz wireless channels for 6G are elaborated.

READ FULL TEXT

page 1

page 3

page 5

page 9

page 11

page 16

page 17

page 18

11/21/2022

300 GHz Channel Measurement and Characterization in the Atrium of a Building

With abundant bandwidth resource, the Terahertz band (0.1 THz to 10 THz)...
01/17/2022

Channel Modeling in RIS-Empowered Wireless Communications

One of the most critical aspects of enabling next-generation wireless te...
04/22/2023

WiThRay: A Versatile Ray-Tracing Simulator for Smart Wireless Environments

This paper presents the development and evaluation of WiThRay, a new wir...
01/31/2020

Geometry based Stochastic Channel Modeling using Ambit Processes

The simulation of vehicular wireless channels using geometry-based radio...
08/19/2019

Propagation Channel Modeling by Deep learning Techniques

Channel, as the medium for the propagation of electromagnetic waves, is ...