Exploiting cognition to the cache-enabled deviceto-device (D2D) communication underlaying the multi-channel cellular network is the main focus of this paper. D2D pairs perform direct communications via sensing the available cellular channels, bypassing the base station (BS). Dynamic service is considered and the network performance is evaluated with the stochastic geometry. Node locations are f...

In this paper, we investigate disaster-assisted communications utilizing two-cell cooperative D2D communications. Specifically, one cell is in a healthy area while the other is in a disaster area. A user equipment (UE) in the healthy area aims to assist a UE in the disaster area to recover wireless information transfer (WIT) via an energy harvesting (EH) relay. In the healthy area, the cellular...

By enabling direct communications between nearby user equipment (UE), device-to-device (D2D) communication has become one of the key technologies in 5th generation (5G) mobile networks. D2D brings new opportunities for devices, especially a highly dense network. In this paper, unlicensed spectrum, namely, D2D-Unlicensed (D2D-U), is discussed. The use frequency bands can ease shortage spectrum r...

Device-to-Device (D2D) communication is expected to be a key feature supported by 5G networks, especially due to the proliferation of Mobile Edge Computing (MEC), which has a prominent role in reducing network stress by shifting computational tasks from the Internet to the mobile edge. Apart from being part of MEC, D2D can extend cellular coverage allowing users to communicate directly when tel...

Several efforts are being made to improve the capacity of 5G networks using emerging technologies interest. One indispensable fulfill need is device-to-device (D2D) communication with its untapped associated benefits. Interference introduced at base station due massive traffic congestion. The purpose this research expand knowledge interference mitigation in D2D stochastic geometrical tools whic...

This paper studies the cognitive wireless powered device-to-device (D2D) communication underlaying a cellular network, where there are two types of communications, including peer-to-peer (P2P) communication and a multi-hop D2D communication, which are assumed to be affected by hardware impairments (HWIs). We investigate the one-hop P2P communication and the multi-hop D2D communication, where th...

Boon-Chong Seet 1,* ID , Syed Faraz Hasan 2,* and Peter Han-Joo Chong 1,* 1 Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand 2 School of Engineering and Advanced Technology, Massey University, Palmerston North 4442, New Zealand * Correspondence: [email protected] (B.-C.S.); [email protected] (S.F.H.); [email protected]...

Future fifth-generation (5G) cellular systems are set to give a strong boost to the large-scale deployment of Internet of things (IoT). In the view of a future converged 5G-IoT infrastructure, cellular IoT solutions such as narrowband IoT (NB-IoT) and device-to-device (D2D) communications are key technologies for supporting IoT scenarios and applications. However, some open issues still need ca...