Apparatus and method for transmitting in smart antenna communication systems
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The invention The present invention using a plurality of antennas in a smart antenna communication system according to the transmitter and a transmission method that implements the forming a pseudo common beam. Specifically, the OFDM (Orthogonal Frequency Division Multiplexing) using a plurality of antennas a form combined to form a pseudo common beam for each tone signal, and to resemble a common beam, PAPR (Peak to Average Power Ratio) value of the preamble signal to prevent a change to a method and apparatus for implementing it for each ton per pseudo common beam to the phase rotation in the frequency axis in the formation. A multi-antenna, multi-user spatial multiplexing, transmit filter, receive filter