Title :
Multidimensional optimum signal constellation design for few-mode fiber based high-speed optical transport
Author :
Liu, Tao ; Djordjevic, Ivan B. ; Xu Lei ; Wang, Ting
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
In this paper, we propose an algorithm to determine the N-dimensional optimum signal constellation design (ND-OSCD), in MMSE sense, for channel capacity achieving source distribution. The simulation results indicate that the proposed LDPC-coded polarization-division-multiplexed (PDM) ND-OSCD significantly outperforms conventional PDM-QAM (by 4.35 dB for 64-ary 3D constellation at BER of 10-7). In addition, the ND-OSCD outperforms sphere packing constellations (by 0.36 dB for 8-ary 3D constellation at BER of 10-7).
Keywords :
channel capacity; optical fibre communication; optical signal detection; BER; LDPC-coded polarization-division-multiplexed; MMSE sense; ND-OSCD; PDM-QAM; channel capacity; few-mode fiber; high-speed optical transport; multidimensional optimum signal constellation design; source distribution; sphere packing constellations; Algorithm design and analysis; Constellation diagram; Optical fiber sensors; Optical fibers; Optical polarization; Multidimensional constellations; coded-modulation; few-mode fibers; signal constellation design;
Conference_Titel :
Photonics Conference (IPC), 2012 IEEE
Conference_Location :
Burlingame, CA
Print_ISBN :
978-1-4577-0731-5
DOI :
10.1109/IPCon.2012.6358620
