Cognitive radio (CR) acts as a significant player in enhancing the spectral efficiency (SE) of wireless telecommunications; simultaneously, intelligent reflecting surface (IRS) technique is valid for increasing confidentiality properties telecommunications systems through modulation amplitude and phase shift channel. Therefore, we take into consideration an IRS-assisted multiple-input single-ou...

We propose a novel physical layer security scheme that exploits an optimization method as one-way function. The proposed builds on nonsquare differential multiple-input multiple-output (MIMO), which is capable of noncoherent detection even in massive MIMO scenarios and thus resilient against risky pilot insertion contamination attacks. In contrast to conventional schemes, require space-time pro...