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 ...

Low-cost passive intelligent reflecting surfaces (IRSs) have recently been envisioned as a revolutionary technology capable of reconfiguring the wireless propagation environment through carefully tuning reflection elements. This paper proposes deploying an IRS to cover dead zone cellular multiuser full-duplex (FD) two-way communication links while suppressing user-side self-interference (SI) an...

In this letter, we propose a novel encrypted data transmission scheme using an intelligent reflecting surface (IRS) to generate secret keys in wireless communication networks. We show that perfectly secure one-time pad (OTP) communications can be established by simple random phase shifting of the IRS elements. To maximize rate, design optimal time slot allocation algorithm for key generation an...

In this paper, a novel relax-and-retract algorithm is proposed to tackle the nonconvex unit-modulus constraint in joint intelligent reflecting surface (IRS) and multiuser multiple-input multiple-output (MU-MIMO) transceiver design. The conventional method semidefinite relaxation (SDR), its computational complexity large. By using symbol detection mean square error (MSE) as quality of service (Q...

In this letter, we investigate an intelligent reflecting surface (IRS) aided device-to-device (D2D) offloading system, where IRS is employed to assist in computation from a group of users with intensive tasks another idle users. To minimize the system latency while cutting down heavy overhead exchange channel state information (CSI), study joint design beamforming and resource allocation on mix...

Pilot spoofing attack (PSA) is a kind of active eavesdropping, which launches the identical training sequence to manipulate channel estimation outcome during pilot phase. The newly proposed intelligent reflecting surface (IRS) system vulnerable PSA because it relies on pilot-assisted methods obtain statement information (CSI). To combat in IRS-assisted systems, we consider two significant chall...

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...