Abstract
In this article, we study the performance of intelligent reflecting surfaces (IRS) with adaptive transmit power (ATP). The power of secondary source is adapted to have a low interference at primary destination. IRS with ATP offers 14, 20, 26, 32, and 38 dB gains versus the absence of IRS for N=8,16,32,64,and 128 reflectors. Rayleigh channels are studied with arbitrary positions of primary and secondary nodes.