Propagation channel modeling for wideband radio systems — How to create realistic MIMO propagation environment for OTA measurements

Effective evaluation of MIMO communication terminal performance in actual radio-wave environments has been carried out in over-the-air (OTA) measurements wherein the terminal under test is placed in a specifically constructed multipath fading environment. For constructing the OTA measurement systems, a propagation channel model not only for having necessary functions but also with simple structure is essential for practical use. For this purpose, we have developed a novel MIMO propagation model incorporating to fading emulators based on “antenna-branch-controlled scheme”. In this presentation, based on our studies, we pursue the channel modeling.