Pathloss Modeling and Analysis for Intelligent Reflecting Surface-Assisted Terahertz MIMO Wireless Systems

Table 1

List of main symbols.

Symbol	Description
	Number of unit cells on the IRS
	The molecular absorption coefficient
	Distance between the transmitting antenna unit and the unit on the IRS
	The elevation angle of the antenna array of the source/destination
	Azimuth AoA on the IRS
	Angle between the transmitting wave and the normal of the unit on the IRS
	Distance between the antenna units at the source/destination
	The efficiency of the unit cells and the insertion loss associated with the generation of the phase shift
	Distance between the unit on the IRS and the receiving antenna unit
	The azimuth angle of the antenna array of the source/destination
	Azimuth DoA on the IRS
	Angle between the reflected wave and the normal of the unit on the IRS