Physical layer protection, which protects data confidentiality using information-theoretic
methods, has recently attracted a lot of research attention. Using the inherent randomness of …

Unmanned Aerial Vehicles (UAVs) have found compelling applications in intelligent
logistics, search and rescue as well as in air-borne Base Station (BS). However, their …

The physical-layer security (PLS) of a space–ground communication system is examined. To
improve the security performance, a pair of reconfigurable intelligent surfaces (RISs) is …

Satellite-aerial communication (SAC) is envisioned as a fundamental component of the sixth-
generation (6G) wireless networks. Motivated by its importance, we investigate a SAC …

Ultra-wide coverage is one of the important concepts of the sixth generation (6G) mobile
communications. High-altitude platform stations (HAPSs) have attracted considerable …

Energy efficiency (EE) is the main target of wireless communication nowadays. In this paper,
we investigate hybrid precoding (HP) and massive multiple-input multiple-output (MIMO) …

Three dimensional (3D) resource reuse is an important design requirement for the
prospective sixth generation (6 G) wireless communication systems. Hence, we propose a …

This paper derives the asymptotic distribution of the normalized-th maximum order statistics
of a sequence of non-central chi-square random variables with non-identical non-centrality …

In the vision of 6th generation (6G) communication systems, the space-air-ground integrated
network (SAGIN) leverages space/aerial platforms at various altitudes, such as satellites (S) …

In the past few years, experts focused on acquiring an expanded explanation of the climate
effects on the terahertz band. Research on the impact of weather problems around the …