System and method for allocating amc band in cellular ofdma systems with multiple antennas

According to the present invention provides a method comprising the allocation of the band to each of the reception apparatus in a system including a transmitting apparatus and receiving apparatus for transmitting data to multiple antennas, the reception apparatus checks the channel received from the transmitting apparatus, multi- step of the process of selecting the multi-antenna mode according to whether or not or whether the multiple outputs of the input if the receiving device selects the optimum frequency band from the selected mode, and the receiver is the selected antenna mode index and band index the process and the transmission apparatus transmits the feedback information to a transmission device comprising a according to feedback information from the receiver, the process of allocating the band to the receiver, and transmits the data using the band It characterized in that it comprises.