An ICI Reduction Scheme with Enhanced Frequency Diversity for OFDM Systems
The authors analyze the frequency diversity of InterCarrier Interference (ICI) reduction methods in the presence of phase noise over multipath fading channels. Based on analysis, they propose an Enhanced Symmetric Data Conjugate (ESDC) method to exploit the frequency diversity in multipath fading channel. They derive Carrier-to-Interference Ratio (CIR) expression of proposed ICI reduction scheme. The BER performance of the proposed system is compared with conventional ICI reduction methods such as adjacent data conjugate and symmetric data conjugate methods.