Title :
Characterization and mitigation of nonlinear intermodulations in multichannel OFDM radio-over-fiber systems
Author :
Jing Wang ; Cheng Liu ; Ming Zhu ; Mu Xu ; Ze Dong ; Gee-Kung Chang
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Nonlinear intermodulations (IMs) between subcarriers from multiple bands/channels of OFDM signals in radio-over-fiber systems are investigated for the first time. Both intra-channel and interchannel IMs are characterized theoretically and experimentally. Pre-distortion technique is proposed and demonstrated for nonlinearity mitigation.
Keywords :
OFDM modulation; adjacent channel interference; intermodulation distortion; radio-over-fibre; interchannel IM; intrachannel IM; multichannel OFDM radio-over-fiber systems; nonlinear intermodulation characterization; nonlinear intermodulation mitigation; predistortion technique; Amplitude modulation; Bandwidth; Nonlinear optics; OFDM; Optical filters; Wireless communication;
Conference_Titel :
Optical Communication (ECOC), 2014 European Conference on
Conference_Location :
Cannes
DOI :
10.1109/ECOC.2014.6964085
