Implementation of Software-based 2x2 MIMO LTE base Station System Using GPU

Abstract

In this paper, we demonstrate an implementation of a software-based 2X2 MIMO base station system for LTE mobile communications. The implemented base station system processes baseband signals on a Graphics Processor Unit (GPU). GPU is a high-speed parallel processor which provides very important advantage of using a very powerful C-based programming environment that is Compute Unified Device Architecture (CUDA). From our experimental tests of video stream data of LTE, we have verified that the GPUbased modem is surely capable of real-time processing of all the baseband signal processing algorithms required for LTE.