Cao Shengjiao, KAM Pooi-Yuen, Yu Changyuan. IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems[J]. 2012,(6):10-12.
Cao Shengjiao, KAM Pooi-Yuen, Yu Changyuan. IQ imbalance compensation and phase noise estimation for coherent optical OFDM communication systems[J]. 2012,(6):10-12. DOI: 10.13756/j.gtxyj.2012.06.007.
the linear impairments of Coherent Optical Orthogonal Frequency-Division-Multiplexed(CO-OFDM) communication systems
including IQ imbalance and linear phase noise
are studied and a decision-aided compensation method without the need of periodic pilots proposed.Simulation results show that the proposed technique can effectively estimate and compensate these two linear losses.On this basis
a novel scheme is presented for joint compensation of IQ imbalance and phase noise in the presence of channel distortion.