Reducing computational complexity is crucial in optimizing the phase shifts of Intelligent Reflecting Surface (IRS) systems since IRS-assisted communication are generally deployed with a large number reflecting elements (REs). This letter proposes low-complexity algorithm, designated as Dimension-wise Sinusoidal Maximization (DSM), to obtain optimal IRS that maximizes sum capacity MIMO network....

Intelligent reflecting surface (IRS) has recently emerged as a promising technology for 6 G wireless systems, due to its capability reconfigure the propagation environment. In this paper, we investigate Rate-Splitting Multiple Access (RSMA) IRS-assisted downlink system, where base station (BS) communicates with single-antenna users help of an IRS. RSMA relies on rate-splitting (RS) at BS and su...

The current literature on intelligent reflecting surface (IRS) focuses optimizing the IRS phase shifts to yield coherent beamforming gains, under assumption of perfect channel state information (CSI) individual IRS-assisted links, which is highly impractical. This work, instead, considers random rotations scheme at in elements only employ without requiring any CSI. CSI then needed base station ...

Both the jammer and eavesdropper pose severe threat to wireless communications due broadcast nature of channels. In this paper, an intelligent reflecting surface (IRS) assisted secure communication system is considered, where a base station (BS) wishes reliably convey information user, in presence both whose transmit informations are not completely known. Specifically, with imperfect third-part...

Intelligent reflecting surface (IRS) is a promising technology to boost the efficiency of wireless energy transfer (WET) systems. However, for multiuser WET system, simultaneous multi-beam transmission generally required achieve maximum performance, which may not be implemented by using IRS having only single set coefficients. As result, it remains unknown how exploit approach such performance ...

Recently, intelligent reflecting surface (IRS) has become a research focus for its capability of controlling the radio propagation environments. Compared to conventional terrestrial IRS, aerial IRS (AIRS) exploiting unmanned vehicle (UAV)/high-altitude platform (HAP) can provide better deployment flexibility. To this end, three-dimensional (3D) one-cylinder model is first developed AIRS-assiste...

This paper investigates the passive beamforming and deployment design for an intelligent reflecting surface (IRS) aided full-duplex (FD) wireless system, where FD access point (AP) communicates with uplink (UL) user a downlink (DL) simultaneously over same time-frequency dimension help of IRS. Under this setup, we consider three cases: 1) two distributed IRSs placed near UL DL user, respectivel...

This letter studies the performance of a single-input single-output (SISO) system enhanced by assistance an intelligent reflecting surface (IRS), which is equipped with finite number elements under Rayleigh fading channels. From instantaneous channel capacity, we compute closed-form expression coverage probability as function statistical information only. A scaling law and phase shifts further ...