Title :
A Novel Multilevel Coded Modulation Scheme for Fiber Optical Channel with Nonlinear Phase Noise
Author :
Beygi, Lotfollah ; Agrell, Erik ; Johannisson, Pontus ; Karlsson, Magnus
Author_Institution :
Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenborg, Sweden
Abstract :
A multilevel coded modulation (MLCM) system in the presence of nonlinear phase noise for fiber optical communication is introduced. The proposed scheme exploits a 16-point ring constellation with nonlinear post compensation of the self phase modulation produced via the Kerr effect. A new set partitioning based on the Ungerboeck approach is introduced to maintain unequal error protection in amplitude and phase direction. The rate allocation for the MLCM component codes for different fiber lengths and transmit powers are done numerically. Simulation results show that the proposed MLCM system provides up to 2 dB gain over a forward error correcting scheme for a block error rates around 10^{-9}, with the same overhead (7%) and complexity.
Keywords :
optical fibre communication; optical modulation; Kerr effect; amplitude direction; block error rate; fiber optical channel; fiber optical communication; forward error correcting scheme; multilevel coded modulation system; nonlinear phase noise; nonlinear post compensation; phase direction; rate allocation; self phase modulation; set partitioning; unequal error protection; Adaptive optics; Modulation; Nonlinear optics; Optical fiber communication; Optical noise; Signal to noise ratio;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4244-5636-9
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2010.5684302
