Title :
A Low-Complexity Detector for Memoryless Polarization-Multiplexed Fiber-Optical Channels
Author :
Hager, Christian ; Beygi, Lotfollah ; Agrell, Erik ; Johannisson, Pontus ; Karlsson, Magnus ; Graell i Amat, Alexandre
Author_Institution :
Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
A low-complexity detector is introduced for polarization-multiplexed M-ary phase shift keying modulation in a fiber-optical channel impaired by nonlinear phase noise, generalizing a previous result by Lau and Kahn for single-polarization signals. The proposed detector uses phase compensation based on both received signal amplitudes in conjunction with simple straight-line rather than four-dimensional maximum-likelihood decision boundaries.
Keywords :
maximum likelihood decoding; optical fibre communication; optical noise; optical signal detection; phase noise; phase shift keying; wavelength division multiplexing; 4D maximum likelihood decision boundaries; M-ary phase shift keying modulation; low-complexity detector; memoryless polarization-multiplexed fiber-optical channels; nonlinear phase noise; phase compensation; Detectors; Nonlinear optics; Optical fibers; Optical noise; Optical polarization; Phase noise; Low-complexity detector; four-dimensional decoding; nonlinear phase noise; polarization-multiplexed fiber-optical channels;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.122713.132200
