BER analysis of OFDM with improved ICI self-cancellation scheme

In orthogonal frequency division multiplexing (OFDM) system, the frequency offset in mobile radio channel leads to the loss of sub-carrier orthogonality which causes inter-carrier interference (ICI). As a result, the performance of the system will degrade. The authors have proposed an efficient scheme for ICI cancellation. Simulation results show that the proposed scheme outperforms the conventional self cancellation scheme in terms of BER and ICI components.