Desarrollo de un simulador de capa física para 5G-NR mediante un software especializado.

Abstract

At the Faculty of Computer Science and Electronics, no current tool is available to assess the performance of the 5G-NR system when traversing fading channels. Therefore, the project’s purpose is to develop a simulator at the physical layer for a 5G network. To achieve this specification physical layer of the 5G-NR standard was investigated, as well as the different stages of the network and the propagation channel models TDL and CDL along with their profiles. For the implementation, MATLAB software was employed, using the 5G Toolbox, allowing for the design and evaluation of the simulator’s operation. It includes stages such as DL-SCH, PDSCH, Precoding, CP-OFDM, Channel Model, Synchronization, Demodulation CP-OFDM, Channel Estimation, PDSCH Decoding, and DL-SCH Decoding. It also can modify parameters such as operating frequency, subcarrier spacing, bandwidth, number of TX and RX antennas, transmission layers, UE speed, fading channel models, and modulation and coding schemes. This methodology provided detailed insight into how different conditions affect the system’s performance, offering metrics such as BER, BLER, Throughput (%), and Throughput (Mbps). In this context, it is concluded that this new technology has enhanced aspects related to modulation and coding schemes, as well as subcarrier spacing, to meet the demands of the new generation of mobile communications.