||In recent years, the frequency resources are exhausted due to the wide spread of the wireless communication devices. In many communication systems, OFDM（Orthogonal Frequency Division Multiplexing）has been attracted attention as one of communication methods with high frequency utilization efficiency. To improve the utilization efficiency, we propose a new OFDM scheme, which consists of two independent OFDM signals that are squeezed into the same frequency band. One of the OFDM sub-carriers are inserted into frequency gaps of the other OFDM sub-carriers. It is impossible to separate two OFDM signals in the baseband region because there is no orthogonality between sub-carriers of two OFDM signals. Therefore, the key issue is the signal separation process in the receiver. Our proposed scheme uses the frequency difference between two OFDM signals in the IF-band region. In the receiver, a delay of a half cycle is carried out for the carrier of the unnecessary signal, and the delay-free signal and the delay signal are added. As a result, the unnecessary signal is removed by reverse phase synthesis, and thus only the desired signal can be taken out. In this paper, wo show the effectiveness of the proposed method through simulation experiments.