Outage probability analysis for device-to-device system

Device-to-Device (D2D) communication capability within a cellular network is an integral part of the LTE-Advanced standards since 3GPP release 12. D2D communication is being targeted for traffic loading applications and proximity based services, and has the potential to enhance spectrum efficiency, overall system throughput and energy efficiency, whilst reducing the system communication delay. However, interference is still a key challenge in D2D-based communications. This will require an analytical toolkit that measure and evaluate the impact of interference on system performance, as well suggest guidelines for operators towards proper network planning. In this paper, we investigate outage probability (OP) as a key performance indicator, considering the signal-to-interference-plus-noise ratio (SINR) threshold for a D2D system. In this context, we exploit stochastic geometry, Laplace transforms, and probability density function (pdf) to calculate the outage probability in a tractable manner. The results of the mathematical analysis are verified through computer simulation.