Trasmitter using multiple antenna

The transmitter for transmitting the IFFT unit and the time domain symbols to convert the pre-coder, the frequency delay device, the frequency delayed symbol delaying rotation frequency of the pre-coded symbols to perform a pre-coding on the input symbols to time domain symbol and a transmission antenna. Through the phase shift (delay or frequency in the frequency domain) in the time domain can be obtained, the time selectivity of the channel, it is possible through the phase shift and time delay to control the frequency selectivity and the time selectivity of the channel is adaptively. A multi-antenna diversity, time selective, MIMO, pre-code