When using the 2-11 GHz frequency range, the Non Line of Sight (NLOS) broadband wireless access offered by Worldwide Interoperability for Microwave Access (WiMAX) is vulnerabledue to the impacts of factors such as multipath propagation, diffraction fading, vegetation attenuation, shadowing loss, and more effects. To get around these impacts, you need to put fade mitigation strategies into action. An effective strategy for fighting fading and increasing the WiMAX system's signal-to-noise ratio (SNR) is Orthogonal Frequency Division Multiplexing with Multiple Inputs and Outputs (OFDM-MIMO). The IEEE 802.16 standard states that in order for the connection to function, a minimum signal-to-noise ratio (SNR) of 6 dB is necessary for QPSK modulation. This study uses OFDM-MIMO to obtain a signal-to-noise ratio (SNR) higher than the operational threshold.