Multi-Relay Selection Strategy for Device to Device Communication

Abstract

Introducing relaying nodes to D2D (Device to Device) communication system can effectively improve the system performance. However, the quality of direct D2D communication cannot be guaranteed when the users are far from each other, the effect of relaying node becomes particularly important in this case. In this paper, we studied different relaying selection strategies of D2D communication in cellular network, in which we take the mutual interference between the D2D pairs and cellular users into consideration. The selection strategies we proposed can adaptively determine the number of relaying nodes according to specific context. Finally we compare the proposed relaying selection strategy with simulation results and analyze their performances.