Asignación de recursos para comunicaciones D2D en redes heterogéneas

Abstract

Device-to-device (D2D) communication allows nearby devices to communicate with each other, this technology is a solution to the increasing demand for data speed, however, interference management is considered one of the most critical problems when introducing this technology to the cellular network, so an efficient allocation of resources is necessary. In this investigation work, a network-controlled resource allocation algorithm for D2D communications is proposed and integrated into a heterogeneous 2-tier network scenario (macro / femto). The resources shared by the users of the femto / D2D system are reused and a portion of them is reserved for that system, that is, it works in overlay mode. The simulations are carried out in a non-dense scenario and in a dense scenario with D2D technology and without D2D, in addition, mobility is added to users in a scenario with 60 femtocells. The results show that D2D technology in conjunction with the femtocellular system can increase throughput of the entire system.