Mode Selection Scheme for D2D Enabled LTE-Advanced Systems

摘要

In this paper, we propose a new mode selection scheme for D2D enabled long term evolution-advanced (LTE-A) systems. The proposed scheme is based on a predefined threshold parameter related to the LTE sidelink (SL) received signal strength (RSS), where above this threshold, the D2D mode outperforms the cellular communication mode. Using the stochastic geometry, the system model is described and the expression of the proposed threshold parameter is derived. To evaluate the performance of the proposed scheme, the expressions of the probability of using D2D mode and the average ergodic capacity are detailed and derived. Based on that, Monte Carlo simulations are used to confirm the derived expressions and the advantages of the proposed scheme over related work in the literature.