A modified PIC method used in cooperative communication system under imperfect synchronization

In this paper, a simple and effective PIC (Parallel Interference Cancellation) method without pilot was proposed for the case that the signal transmission under the imperfect synchronization from relay nodes to the destination node. This scheme utilizing iteration cancels the interference components in the received signals. Applying two antennas in destination node, the effect of this proposed method can be even more apparent. The simulation results show that the proposed scheme not only improved BER performance but also retains a lower structural and computational complexity than the conventional scheme without synchronization.