Experimental study of cooperative MIMO at HF band

Results of an experiment, on which base a capacity estimation of cooperative 2×2 MIMO, MISO, and SIMO was obtained for high frequency radio channels for the following cases: 1) presence of the channel state information on the receiving side only, 2) presence of the channel state information on both receiving and transmitting side, 3) incomplete and/or inaccurate channel state information on the transmitting side. The experiment was carried out under typical for the real use conditions of time and frequency synchronization of the radio, connected to each antenna element.