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http://dx.doi.org/10.7840/kics.2014.39C.5.413

Analysis of Low Computational Complexity DSP Algorithm for Phase Noise Compensation in Coherent Optical Communication Systems  

Park, Hyoung-Joon (Broadband Transmission Network Lab, Department of Electrical and Electronic Engineering, Yonsei University)
Jung, Sang-Min (Broadband Transmission Network Lab, Department of Electrical and Electronic Engineering, Yonsei University)
Han, Dong-Yoon (Broadband Transmission Network Lab, Department of Electrical and Electronic Engineering, Yonsei University)
Han, Sang-Kook (Broadband Transmission Network Lab, Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.39C, no.5, 2014 , pp. 413-417 More about this Journal
Abstract
In coherent superhigh speed optical transmission link, compensating the system impairments are critical issues. Among these issues, phase noise and carrier frequency offset are the most important impairments which interrupt the signal recovery. This paper suggests a algorithm of digital signal processing that compensates the phase noise and carrier frequency offset and verified its validity. The suggested digital signal processing algorithm has a lower computational complexity compared with the previous algorithms, so it can ease the burden of signal processing at the receiver to provide high speed optical transmission system.
Keywords
digital signal processing; optical network; QPSK; phase noise; carrier frequency offset;
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