Joint mode selection and user association in D2D enabled multitier C-RAN

Abstract

The device-to-device D-2-D Communication empowered Cloud Radio Access Network (CRAN) which is examined to be auspicious system model, gives energy efficiency and high data rate. In this research study, we formulate a mode selection (MS), and user-association (UA) problem in device-to-device empower Single Carrier Frequency Division Multiple Access (SCFDMA) based CRAN in the forthcoming link. Combined-integer non-linear problem is not possible to solve in its current state. To address the problem, an iterative algorithm is proposed which solves this problem in two stages; Mode Selection Stage and User-Association Stage. D2D communication can be made possible using single carrier frequency division multiple access-based C-RAN. Cloud radio access network is a revolution for cellular networks. For next round selection, link-based algorithm is presented while for user-association, an iterative algorithm is presented. Different cell radius for base algorithms, optimal technique and proposed solution are compared in simulation. The efficiency of the proposed algorithm is verified by simulation results and have efficient outcome among other algorithms.