Title :
Optimal signal constellation design for coherent optical channels dominated by the nonlinear phase noise
Author :
Tao Liu ; Djordjevic, Ivan B. ; Yequn Zhang ; Ding Zou
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
An optimal signal constellation design algorithm suitable for the coherent optical channels dominated by the nonlinear phase noise is proposed. In this method, the cumulative log-likelihood-function is used as the optimization criterion. We demonstrate by simulation that the signal constellations obtained by using this algorithm significantly outperform conventional QAM.
Keywords :
optical communication; optical noise; optimisation; phase noise; QAM; coherent optical channel; cumulative log-likelihood-function; nonlinear phase noise; optimal signal constellation design algorithm; optimization criterion; Algorithm design and analysis; Constellation diagram; Fiber nonlinear optics; Optical fibers; Phase noise; coherent detection; fiber nonlinearities; modulation formats; signal constellation design;
Conference_Titel :
Transparent Optical Networks (ICTON), 2014 16th International Conference on
Conference_Location :
Graz
DOI :
10.1109/ICTON.2014.6876405
