MIMO communication method and device

The invention provides an MIMO (Multiple Input Multiple Output) communication method and device. The MIMO communication method comprises the following steps: determining a center node and a plurality of edge nodes of a star network; point-to-point connection is established between the center node and each edge node, so that the direction angle and the distance of each edge node relative to the center node can be determined; in the fixed direction of the center node, according to the distance of each edge node relative to the center node in the angle range of the fixed direction, selecting all the edge nodes of which the distances relative to the center node are in a preset distance range as partner node clusters communicating with the center node; the partner node clusters are integrated into a group of MIMO antennas, and the center node and the partner node clusters are controlled to establish MIMO connection so as to realize MIMO communication; wherein the partner node cluster focuses the transmitting power