Reaching Higher data rate and spectral efficiency are among the challenges expected for 4G wireless systems. Combining OFDM modulation and multiple-input multipleoutput (MIMO) help for that. In this paper, performances of a WiMAX MISO-OFDM based system are studied through

measurements done in a reverberation chamber. The used antennas’ specifications are given as well as the numerical blocks descr iption. The results obtained are compared to a reference

case with single-input single-output (SISO) in order to evaluate the studied system’s real performances