Orthogonal Polarization and Frequency Division Multiplexing using a Half Symbol Delay Frequency Offset Compensation Scheme (HSD-OPFDM)

Abstract

This paper proposes a new frequency offset compensation scheme for OPFDM (Orthogonal Polarization and Frequency Division Multiplexing) signals OPFDM is a class of OFDM (Orthogonal Frequency Division Multiplexing) whose sub-channels are divided into even and odd sub-channels, and these sub-channels' signals are transmitted using different polarization in order to eliminate the performance degradation caused by frequency offset. In this scheme, the frequency offset can be continuously compensated for without a known training sequence, pilot signal or guard time symbols The proposed scheme can further compensate for the frequency offset by making use of the cyclostationarity of the OPFDM signals Computer simulation results confirm that the proposed scheme can efficiently compensate for the frequency offset, and improve the bit error rate performance