The sixth-generation (6G) communication requires supporting massive Internet of Things
(IoT) devices and extremely differentiated IoT applications for the air–space–ground …

High spectrum efficiency (SE) requirement and massive connections are the main
challenges for the fifth generation (5G) and beyond 5G (B5G) wireless networks, especially …

Nonorthogonal multiple access (NOMA) significantly improves the connectivity opportunities
and enhances the spectrum efficiency (SE) in the fifth generation and beyond (B5G) wireless …

The Internet of Things (IoT) has significant importance in the beyond fifth generation (B5G)
communication systems. However, the IoT is vulnerable to disasters because the network is …

Unmanned aerial vehicle (UAV) communication is a promising technology for Internet of
Things (IoT) systems. In this paper, we combine UAV communication and nonorthogonal …

The sixth generation (6G) communication creates a fully connected world of terrestrial
wireless and satellite communications, which achieves global seamless coverage. To obtain …

Unmanned aerial vehicles (UAVs) facilitate information collection greatly in the Internet-of-
Things (IoT) systems due to their superior flexibility and mobility. On the other hand …

Current fifth-generation (5G) networks do not cover maritime areas, causing difficulties in
developing maritime Internet of Things (IoT). To tackle this problem, we establish a …

This article proposes a novel framework for UAV networks with massive access capability
supported by NOMA. In order to better understand NOMA-enabled UAV networks, three …

A reconfigurable intelligent surface (RIS) aided air-to-ground uplink non-orthogonal
transmission framework is investigated for next generation multiple access. Occupying the …