Path Loss and Multipath Channel Characteristics of 220–330 GHz Communication in Outdoor L-Shaped Street Based on Ray Tracing Method
摘要
The research on 6G wireless communication technology has become an urgent priority, with terahertz communication being regarded as one of the most promising components. The study and application of the terahertz frequency band (0.1–10 THz) are expected to bring revolutionary changes, addressing the transmission challenges between infrared and microwave bands while offering the potential for high-speed, low-latency, and large-capacity communication. As a result, terahertz technology is seen as a key driver for 6G development. However, current research on outdoor terahertz channels lags significantly behind that of indoor environments, warranting further exploration. In this paper, we model terahertz channels in the 220–330 GHz frequency range for an outdoor L-shaped street scenario using the ray-tracing method, analyzing the relationship between path loss, delay spread, and angular spread with frequency. This study further reveals the characteristics of outdoor terahertz multipath channels.