Spatially selective modulation (SSM) is a physical layer security technique based on
multiple transmitting antennas and a single receiving antenna. The method allows only the …

Information security has always been a critical concern for wireless communications due to
the broadcast nature of the open wireless medium. Commonly, security relies on …

Security is an important issue for wireless communications and poses many challenges.
Most security schemes have been applied to the upper layers of communications networks …

The unprecedented growth in the number of mobile data and connected machines ever-fast
approaches limits of fourth generation technologies to address this enormous data demand …

Recently, the physical layer has gained a more prominent role on the security context of
wireless networks due to its potentiality on providing more effective solutions to safeguard …

Recently, MIMO (multiple-input-multiple-output) physical layer secure transmission has
attracted great attentions. However, current schemes cannot defend against the passive …

Existing physical layer security schemes are inapplicable to legacy devices operating on
long coherence-time channels, since they demand changes in the physical layer. To this …

This article proposes a novel intelligent reflecting surface (IRS) backscatter enhancing
strategy to secure multi-input multioutput (MIMO) transmission in the presence of 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 …

Physical (PHY) layer security approaches for wireless communications can prevent
eavesdropping without upper layer data encryption. However, they are hampered by …