Information and Communications Technology and Policy

Information and Communications Technology and Policy

Information and Communications Technology and Policy ›› 2022, Vol. 48 ›› Issue (9): 34-49.doi: 10.12267/j.issn.2096-5931.2022.09.005

Previous Articles     Next Articles

A comprehensive survey on terahertz channel measurement, modeling, and analysis

LI Yuanbo, WANG Yiqin, HAN Chong   

  1. Shanghai Jiao Tong University, Shanghai 201100, China
  • Received:2022-07-25 Online:2022-09-15 Published:2022-09-29


Terahertz (0.1~10 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. Then, existing channel modeling methodologies are categorized into deterministic, stochastic, and hybrid approaches. 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.

Key words: terahertz communications, channel measurements, channel simulators, channel models, channel characterization

CLC Number: