Channel Reconstruction and Path Loss Characterization of Indoor T-Corridors based on Intelligent Reflecting Surface at 300GHz

The unique nature of the high frequencies in the terahertz band (0.1-10 terahertz) makes it impractical to use lower frequency channel models. Therefore, there is an urgent need to develop new channel models to realize the potential of terahertz communications, and a variety of channel measurement methods and measurement environments can accelerate development efforts. Since Intelligent Reflective Surface (IRS) is a potential solution to improve the cost-effectiveness and energy efficiency of sixth generation (6G) wireless communication systems. Therefore, this paper presents a method to implement IRS functionality in a 3D ray-tracing simulator and applies it to a novel indoor T-corridor scenario with no line-of-sight path (NLoS) between the transmitter (Tx) and receiver (Rx). High-resolution 3D measurements are processed at 300 GHz to obtain bidirectional angular delay power spectra as well as delay and angular power distributions, and finally the channel is characterized by path loss. Numerical results show that the incorporation of IRS into wireless communication systems in this scenario can significantly improve the coverage and provide useful insights for optimizing the deployment of IRS in indoor T-corridor scenarios.