ICI iterative cancellation method of channel´s selection in cooperative system

To the problem of cancelling subcarrier´s interference in moving terminal with high speed, the paper first established model of the terminal´s cooperative OFDM system, and deduced the math´s expression of the interference caused by Doppler shift. The paper used signal to interference and noise ratio (SINR) to describe channel´s performance, building the relation between SINR and Doppler shift and signal to noise ratio. Comparing their SINR, the paper proposed channel selection method on subcarrier interference cancellation of high speed moving terminal, then adopted the principle of iterative interference cancellation method based on the channel selection, the simulations prove that the method can efficiently improve the system´s performance.