The intelligent information society, which is highly digitized, intelligence inspired, and globally data driven, will be deployed in the next decade. 6G wireless communication networks are key to achieve this grand blueprint, expected connect everything, provide full dimensional coverage integrate all functions support full-vertical applications. Recent research reveals that reflecting surface ...

Intelligent reflecting surface (IRS) has drawn a lot of attention recently as promising new solution to achieve high spectral and energy efficiency for future wireless networks. By utilizing massive low-cost passive elements, the propagation environment becomes controllable thus can be made favorable improving communication performance. Prior works on IRS mainly rely instantaneous channel state...

This paper investigates the robust beamforming design in a secrecy multiple-input single-output (MISO) network aided by intelligent reflecting surface (IRS) with simultaneous wireless information and power transfer (SWIPT). Specifically, considering that energy receivers (ERs) are potential eavesdroppers (Eves) imperfect channel state (CSI) of direct cascaded channels can be obtained, we invest...

In this paper, the adoption of an intelligent reflecting surface (IRS) for multiple user pairs in two-hop networks is investigated. Different from existing studies on IRS that mainly focused tuning reflection coefficients all elements, we consider implementation true resource management (RRM) t...

In millimeter wave (mmWave) communication, lens antenna array has been considered as a potential technique to combat the severe path loss. However, blockage effect still exists. To address this issue, we design an intelligent reflecting surface (IRS) assisted wideband mmWave communication system with limited radio frequency (RF) chains. This is first attempt integration of IRS and array. The de...

In this letter, we consider an intelligent reflecting surface (IRS)-aided wireless communication system, where active or xmlns:xlink="http://www.w3.org/1999/xlink">passive IRS is employed to assist the between access point and a user. First, downlink/uplink separately optimize placement for...

Simultaneously transmitting/refracting and reflecting reconfigurable intelligent surface (STAR-RIS) has been introduced to achieve full coverage area. This paper investigate the performance of STAR-RIS assisted non-orthogonal multiple access (NOMA) networks over Rician fading channels, where incidence signals sent by base station are reflected transmitted nearby user distant user, respectively....

The past years have witnessed increasing research interest in achieving passive human localization with commodity WiFi devices. However, due to the fundamental limited spatial resolution of signals, it is still very difficult achieve accurate existing To tackle this problem, paper, we propose exploit degree freedom provided by Intelligent Reflecting Surface (IRS), which composed a large number ...

The relative impacts of different types of land use on the surface water quality are yet to be ascertained and quantified. In this paper, the influence of different types of land use on surface water quality is investigated. Rain events samples from different land use in the central plateau, Iran, were analyzed for major ions. Statistical analyses were employed to examine the statistical relati...