Analytical Modeling of Mode Selection and Power Control for Underlay D2D Communication in Cellular Networks

TLDR

Device‑to‑device communication lets nearby user equipments bypass base stations, offloading traffic while improving spatial frequency reuse and energy efficiency. This study introduces a tractable analytical framework for uplink cellular networks that incorporates flexible mode selection and truncated channel‑inversion power control. The framework is employed to analyze the impact of underlay D2D communication on cellular network performance. Numerical results demonstrate performance gains and offer guidelines for selecting network parameters.

Abstract

Device-to-device (D2D) communication enables the user equipments (UEs) located in close proximity to bypass the cellular base stations (BSs) and directly connect to each other, and thereby, offload traffic from the cellular infrastructure. D2D communication can improve spatial frequency reuse and energy efficiency in cellular networks. This paper presents a comprehensive and tractable analytical framework for D2D-enabled uplink cellular networks with a flexible mode selection scheme along with truncated channel inversion power control. The developed framework is used to analyze and understand how the underlaying D2D communication affects the cellular network performance. Through comprehensive numerical analysis, we investigate the expected performance gains and provide guidelines for selecting the network parameters.