User terminal selection method in zero forcing beamforming algorithm

The zero-forcing beamforming method for selecting a user terminal of the present invention the base station receives a channel capacity of each terminal from all the terminals K, and select the channel capacity of the largest terminal as the initial transmission target terminal, of the selected terminal can i have a predetermined number are equal is determined as N, and receives the channel capacity of, if the number i of the selected terminal in advance equal to the predetermined number N with the exception of the transmission destination terminal previously selected until i is equal to the N terminal channel the capacity to select the largest terminal to the transmission destination terminal. Zero-forcing (Zero-forcing), beamforming (beamforming), multi-user diversity (multi-user diversity), SM (spatial multiplexing)