Novel resource allocation scheme in Direct LTEA communication

In an era where spectral resources are at a premium, the underutilization of LTEA spectrum on the Uplink (UL) band due to the asymmetric nature of internet traffic is a major concern. On the other hand, Ad-hoc mode, Device to Device (D2D) or Direct-LTEA communication underlying a cellular infrastructure has recently started gaining attention as a new technology that supports machine-to-machine scenarios that can be network unassisted providing a tentative solution towards filling in the spectral gaps. Although D2D communication can share the same licensed frequency band with cellular users, it requires stringent interference management to avoid diminishing the communication quality with primary users. In this paper, we consider secondary D2D users that operate over LTEA UL bands. D2D users sense the pathloss between their location and LTEA eNB. Based on this sensing information, a novel resource allocation scheme is applied to mitigate the interference with the LTEA system. Simulation results show that there is about a 50