A base station for a multiple input multiple output (MIMO) communication system comprising the base station and a plurality of terminals, comprising: a receiver configured to receive periodic channel information from the plurality of terminals, a processor configured to: schedule the plurality of terminals according to the channel information received from the plurality of terminals to generate a precoding matrix, determine at least one terminal, from among the plurality of terminals, to which a feedback stop signal is to be transmitted, determine a section N denoting a number of subsequent subframes for which feedback of the channel information from the at least one terminal is to be stopped, based on a number of terminals communicating with the base station and transmission ranks of the base station, and generate the feedback stop signal comprising information about the section N for which feedback of the channel information is to be stopped; a transmitter configured to transmit the feedback stop signal to the at least one terminal for a terminal receiving the feedback stop signal to stop feedback for N subsequent subframes in response to reception of the feedback stop signal; and wherein the receiver is further configured to receive channel information from the at least one terminal receiving the feedback stop signal after the predetermined subsequent subframes elapse. a receiver configured to receive periodic channel information from the plurality of terminals, a processor configured to: schedule the plurality of terminals according to the channel information received from the plurality of terminals to generate a precoding matrix, determine at least one terminal, from among the plurality of terminals, to which a feedback stop signal is to be transmitted, determine a section N denoting a number of subsequent subframes for which feedback of the channel information from the at least one terminal is to be stopped, based on a number of terminals communicating with the base station and transmission ranks of the base station, and generate the feedback stop signal comprising information about the section N for which feedback of the channel information is to be stopped; schedule the plurality of terminals according to the channel information received from the plurality of terminals to generate a precoding matrix, determine at least one terminal, from among the plurality of terminals, to which a feedback stop signal is to be transmitted, determine a section N denoting a number of subsequent subframes for which feedback of the channel information from the at least one terminal is to be stopped, based on a number of terminals communicating with the base station and transmission ranks of the base station, and generate the feedback stop signal comprising information about the section N for which feedback of the channel information is to be stopped; a transmitter configured to transmit the feedback stop signal to the at least one terminal for a terminal receiving the feedback stop signal to stop feedback for N subsequent subframes in response to reception of the feedback stop signal; and wherein the receiver is further configured to receive channel information from the at least one terminal receiving the feedback stop signal after the predetermined subsequent subframes elapse. <EOS>