Architecture and Benchmark of an Experimental CRAN Platform over CPRI

Cloud Radio Access Network (CRAN) is an architecture for wireless communication networks, particularly in the context of WiFi, cellular networks, and beyond. The main objective of CRAN is to centralize and virtualize the baseband processing functions of the network to provide several benefits in terms of scalability, efficiency, and flexibility. At first, this paper suggests a design to enhance the core capabilities of CRAN. As a result, two Radio Frequency Systems on Chip (RFSoCs) devices are used to communicate between the Radio Equipment Controller (REC) and the Radio Equipment (RE) through the Common Public Radio Interface (CPRI). The designed flow and the required FPGA resources are discussed. Secondly, the main purpose of this paper is to perform the Fast Fourier Transform (FFT) on the Orthogonal Frequency Division Multiplexing (OFDM) data when the slave sends back OFDM data to the master.