The performance of an uplink Large Scale MIMO system with MMSE-SIC detector

The quality of the information that reaches the destination is being affected by different disturbing factors encountered in the environment through which it is transmitted. The main purpose is to retrieve the information at the reception as accurately as possible, therefore, the idea behind each technology implemented in nowadays wireless systems is to improve the experience of users by finding the right solution for their needs. In order to support the affirmations made above, in this paper we propose an uplink Massive multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system when its resources are used to fulfill the requests of multiple users which are active in the same time. At the reception is employed a minimum mean-square-error (MMSE) detector, followed by successive interference cancellation (SIC). Taking into account the proposed architecture, the transmitter, receiver and communication channel will be implemented in Matlab. Its performance will be analyzed in terms of Bit Error Rate (BER) versus Signal-to-Noise Ratio (SNR) when the number of base station (BS) antennas varies between 10 to 50.