Channel propagation emulation in Mode Stirred Reverberating Chambers

Wireless systems used in confined environment show sometimes some operating instabilities essentially due to the propagation channel. In order to predict and improve the wireless link performances, we propose to test the wireless system in a controlled propagation channel. As shown in this paper, mode stirred reverberating chambers seems to be an interesting mean able to simulate realistic and reproducible channels even with Rayleigh distributed fast fading channel. An experiment consisting in measuring Transfer Function between two antennas in multi cavities was carried out and driven by WIFI connection; results present the WIFI link integrity emulated by multipath channel propagation and controlled with simple physical cavity characteristics (Q-factor, delay spread, stirrer position, etc.).