Device-to-device (D2D) communication that allows proximity users to communicate directly
has been recently proposed to improve spectral efficiency of cellular networks. In this paper …

The rapid increase in the number of devices associated with the cellular network; fulfilling
their demands is one of the significant challenges for next-generation networks (5G). The …

Public regulatory agencies have traditionally assigned radio-electric spectrum in a static
way. This has led to an almost fully assigned but sparsely and unevenly used spectrum, in …

Abstract Background/Objectives: In wireless broadband access networks, most indoor
environments encounter serious coverage problem. Femtocells have been introduced as an …

Device-to-device (D2D) communication has been proposed to improve the resource
efficiency and lighten the heavy load of the base station (BS) in Long-Term Evolution (LTE) …

Green communications in LTE networks with environmentally friendly small cell base
stations (BSs) are investigated. An approach to reassign mobile users to different LTE BSs is …

Recently, the multimedia content delivery has replaced the traditional voice communication
as the major source of traffic in wireless networks. The deployment of femtocells is promising …

Supporting the traffic emanating from the internet of things (IoT) is a major challenge for 5G
systems. A significant portion of this traffic will be generated indoors. Therefore, in this …

In this paper, we study uplink resource management in a two-tier macro-femto
heterogeneous system with hybrid access control. We consider a system where a macro …

Based on cooperative spectrum leasing, a distributed “win-win”(WW) cooperative framework
is designed to encourage the licensed source node (SN) to lease some part of its spectral …