Simultaneous Terahertz Information and Power Transfer (STIPT) with Self-Sustainable Intelligent Reflecting Surface

In this paper, the Intelligent Reflecting Surface (IRS) is exploited to assist the simultaneous terahertz (THz) information and power transfer (STIPT) system. The information users’ (IUs’) sum-data rate is maximized while guaranteeing the energy users’ (EUs’) and IRS’s power harvesting requirements. The block coordinate descent (BCD) based algorithm is adopted to alternately optimize the transmit precoding of IUs, and IRS’s reflecting coefficients. Simulation results confirm that the proposed BCD algorithm can significantly enhance the performance of STIPT by employing IRS.