Optimum signal constellation design for ultra-high-speed optical transport networks

Author

Djordjevic, Ivan B. ; Liu, Tao ; Cvijetic, Milorad

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA

fYear

2012

fDate

2-5 July 2012

Firstpage

1

Lastpage

7

Abstract

In this invited paper we analyze several strategies that can be used facilitate the implementation of 400 GbE and 1 TbE technologies with respect to signal-constellation design and propose the use of optimum signal constellations instead of conventional QAM scheme. The proposed signal constellation designs can be used in combination with large-girth LDPC codes to solve both the bandwidth and energy-efficiency problems of future Ethernet technologies. We further describe several hybrid coded-modulation (CM) schemes that enable multi-terabit serial optical transport, including energy-efficient D-dimensional CM, mode-multiplexed four dimensional CM, and mode-multiplexed generalized-OFDM.

Keywords

modulation coding; optical fibre LAN; optical modulation; parity check codes; quadrature amplitude modulation; Ethernet technology; QAM scheme; bit rate 1 Tbit/s; bit rate 400 Gbit/s; energy-efficiency problems; energy-efficient D-dimensional CM scheme; hybrid coded-modulation schemes; large-girth LDPC codes; mode-multiplexed four dimensional CM scheme; mode-multiplexed generalized-OFDM; multiterabit serial optical transport network; optimum signal constellation design; ultrahigh-speed optical transport networks; Algorithm design and analysis; Constellation diagram; Energy efficiency; Integrated optics; Parity check codes; Quadrature amplitude modulation; Optical networks; coded-modulation; low-density parity-check (LDPC) codes; modulation; multiplexing; orbital angular momentum (OAM); signal constellation design;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2012 14th International Conference on

Conference_Location

Coventry

ISSN

2161-2056

Print_ISBN

978-1-4673-2228-7

Electronic_ISBN

2161-2056

Type

conf

DOI

10.1109/ICTON.2012.6253865

Filename

6253865