CP-OFDM and UF-OFDM in the Presence of Phase Noises and Their Mitigations

In this paper, we study the performances of cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and universal filtered orthogonal frequency division multiplexing (UF-OFDM) in the presence of phase noises. A phase noise mitigation scheme was proposed for CP-OFDM in a previous work. In this work, we extend the scheme to UF-OFDM. Phase noise estimation parameters are studied extensively in order to improve the performance of the scheme with a respect of the performance-complexity trade-off. The proposed scheme does not require detailed knowledge of statistics of the phase noise and can effectively compensate the phase noise within each multicarrier symbol with reasonable complexity.