Research Article
Adaptive Joint-Polarization Carrier Phase Recovery for Optical Coherent Communication
@INPROCEEDINGS{10.1109/ChinaCom.2013.6694707, author={Tee-Hiang Cheng and Dezhao Huang}, title={Adaptive Joint-Polarization Carrier Phase Recovery for Optical Coherent Communication}, proceedings={8th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2013}, month={11}, keywords={carrier phase recovery coherent optical communication digital signal processing}, doi={10.1109/ChinaCom.2013.6694707} }- Tee-Hiang Cheng
Dezhao Huang
Year: 2013
Adaptive Joint-Polarization Carrier Phase Recovery for Optical Coherent Communication
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2013.6694707
Abstract
Coherent communication with multi-level modulation and digital signal processing (DSP) is considered a promising solution to satisfy the exponentially-growing Internet traffic. DSP algorithms with low computational complexity and feedforward (FF) structure are highly desirable in high baud rate optical coherent receivers. We present a carrier phase recovery algorithm to jointly compensate frequency offset and carrier phase noise based on the widely-used Viterbi and Viterbi phase estimation (VVPE) algorithm with reduced computational complexity and hardware resources. An adaptive joint-polarization frequency offset (FO) estimator is proposed in place of the normal one-time FO estimation for better estimation accuracy and reduced system memory requirement. Simulation and experiment results validate the performance superiority of the proposed algorithm against the classic carrier phase recovery algorithms combination.