METHOD FOR TRANSMITTING/RECEIVING A SIGNAL AND APPARATUS FOR TRANSMITTING/RECEIVING A SIGNAL

摘要

A method and apparatus for transmitting and receiving signals is disclosed. When data is carried on subcarriers to be transmitted, the data can be spread through precoding before being transmitted in order to prevent data carried on subcarriers of a specific frequency from being lost by frequency selective fading. Since data is precoded for transmission, channels in various channel environments do not affect the data and the correlation between channels is reduced, thereby increasing the performance of receiving signals.