The maximum capacity of fractal D2D (device-to-device) social networks with both direct and hierarchical communications is studied in this paper. Specifically, the are characterized by connection self-similarity. Firstly, for a network communications, it proved that $ \Theta\left(\frac{1}{\sqrt{n\log n}}\right) if user communicates one his/her contacts randomly, where n denotes total number use...

Device-to-device (D2D) communication is a promising paradigm for the fifth generation (5G) and beyond 5G (B5G) networks. Although D2D provides several benefits, including limited interference, energy efficiency, reduced delay, network overhead, it faces lot of technical challenges such as architecture, neighbor discovery, etc. The complexity configuring links managing their especially when usin...

In recent years, safety operation issues related to the autonomous flight of unmanned aerial vehicles (UAVs) have become popular research and development topics worldwide. Among all UAV applications, multiple UAV-related applications are emerging due integration UAVs into 6G networks, which is an important topic for next-generation wireless communication systems. For among most significant issu...

Device-to-device (D2D) communications underlaid cellular networks have emerged as a promising network architecture to provide extended coverage and high data rate for various Internet of Things (IoT) applications. However, because the inherent openness broadcasting nature wireless communications, such face severe risks privacy disclosure. This paper investigates covert in providing enhanced pro...

Device-to-device (D2D) communications allows two adjacent mobile terminals transmit signal directly without going through base stations, which has been considered as one of the key technologies for future networks. As full-duplex (FD) can improve performance (i.e., throughput, energy efficiency (EE)) systems, it is commonly used in practical D2D scenarios. However, FD-enabled also results self-...