To satisfy the various demands of growing devices and services, emerging high-frequency-
based technologies promote near-field wireless communications. Therefore, near-field …

As a kind of wavefront with helical phase, orbital angular momentum (OAM) shows the great
potential to enhance the security results of wireless communications due to its unique …

In this paper, we propose a physical layer secret key (PLSK) generation scheme for secure
encrypted transmissions in orbital angular momentum (OAM) communication systems which …

Orbital angular momentum (OAM) provides an additional degree of freedom for information
transmission. However, wireless transmissions with OAM are challenged by secrecy issues …

In order to deal with the power leakage of side lobes in physical layer security, this paper
investigates a secure transmission system aided by Orbital Angular Momentum (OAM) …

Physical layer security is a cross research hotspot of information security and wireless
communications. Recently, orbital angular momentum (OAM) technology has attracted …

Aiming at the physical layer information security risk in wireless communication system, a
physical layer security transmission technology based on OAM (Orbital angular momentum) …

Orbital angular momentum (OAM) for radio communications has the potential of
simultaneously transmitting multiple signals at the same frequency and time resources. This …

A near-field secure transmission framework is proposed. Employing the hybrid beamforming
architecture, a multi-antenna base station (BS) transmits confidential information to a multi …

Recently, near-field communications (NFCs) have drawn great attention for the near-field
region expansion in the context of extremely large-scale (XL) antenna arrays, tremendously …