High-resolution estimation of NLOS indoor MIMO channel with network analyzer based system

This report presents a MIMO sounding system dedicated to short range wireless communication. The system can easily be integrated with a vector network analyzer (VNA) and other commercial equipments. The advantage of our proposed system is the achievement of completely automatic measurement, while retaining accuracy. Using the system, a double directional measurement campaign in indoor NLOS environment was performed, where the channel was estimated in a deterministic way with the ISI-SAGE algorithm. In the use of ISI-SAGE algorithm, we propose to estimate polarization characteristics for identical path. One of the realizations of the optimum search and initialization with successive interference cancellation type procedure, which is suitable for a large number of sampling, available case is shown as well. The result of the measurement campaign shows the effectiveness of our proposals.