Intelligent reflecting surface (IRS) has recently been emerged as an effective way for improving the performance of wireless networks by reconfiguring propagation environment through a large number passive elements. This game-changing technology is especially important stepping into Internet Everything (IoE) era, where high demanded with very limited available resources. In this paper, we study...

As communication systems that employ millimeter wave (mmWave) frequency bands must use large antenna arrays to overcome the severe propagation loss of mmWave signals, hybrid beamforming has been considered as an integral component communications. Recently, intelligent reflecting surface (IRS) proposed innovative technology can significantly improve performance through low-cost passive elements....

In this letter, an intelligent reflecting surface (IRS)-aided secure wireless information and power transfer system is studied. To maximize the harvested of energy harvesting receiver (EHR), we optimize transmit beamforming at access point (AP) phase shifts IRS subject to secrecy rate (SR) constraints. Due non-convexity optimization problem coupled variables, convert into a semidefinite relaxat...

Intelligent reflecting surface (IRS) is a new promising technology that able to reconfigure the wireless propagation channel via smart and passive signal reflection. In this paper, we investigate capacity region of two-user communication network with one access point (AP) aided by M IRS elements for enhancing user-AP channels, where incurs negligible delay, thus channels follow classic discrete...

Intelligent reflecting surfaces (IRS) have been proposed as a revolutionary technology owing to its capability of adaptively reconfiguring the propagation environment in cost-effective and hardware-efficient fashion. While application IRS passive reflector enhance performance wireless communications has widely investigated literature, using transmitter recently is emerging new concept attractin...

Bistatic backscatter communication (BackCom) allows passive tags to transmit over extended ranges, but at the cost of having carrier emitters either transmitting high powers or being deployed very close tags. In this paper, we examine how presence an intelligent reflecting surface (IRS) could benefit bistatic BackCom system. We study power minimization problem emitter, where its beamforming vec...

In this paper, an optimization algorithm is proposed for the system, where a decode-and-forward (DaF) protocol based full duplex relay (FDR) and intelligent reflecting surface (IRS) work together to deliver message signals from source destination. The transmission carried out in single time frame due nature of FDR IRS. joint beamformers multiple antenna sets at along with phase adjustment eleme...