Training aided frequency domain equalization with maximum-likelihood sequence detection in coherent optical communications systems using FTN signaling

Author

Lin Chen ; Jie Liu ; Changjian Guo

Author_Institution

South China Acad. of Adv. Optoelectron., South China Normal Univ., Guangzhou, China

fYear

2015

Firstpage

1

Lastpage

3

Abstract

We propose to use training aided frequency domain equalization (FDE) with maximum-likelihood sequence detection (MLSD) in long-haul single carrier optical communications systems using faster than Nyquist (FTN) signaling. Simulation results of the proposed long-haul system are presented, which show that the BER performance of the proposed FDE with truncated MLSD scheme outperforms that of the conventional 2-tap post filter MLSD scheme when the number of taps is greater than 3.

Keywords

error statistics; frequency-domain analysis; maximum likelihood detection; optical communication; optical filters; sequences; telecommunication signalling; BER performance; FTN signaling; coherent optical communication system; faster than Nyquist signaling; long-haul single carrier optical communication system; maximum likelihood sequence detection; tap post filter MLSD scheme; training aided FDE; training aided frequency domain equalization; truncated MLSD scheme; Bit error rate; Frequency-domain analysis; Optical fiber networks; Optical fiber polarization; Receivers; Training; Coherent optical communications; Maximum-likelihood sequence detection (MLSD); faster than Nyquist (FTN); frequency-domain equalization (FDE);

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communications and Networks (ICOCN), 2015 14th International Conference on

Conference_Location

Nanjing

Type

conf

DOI

10.1109/ICOCN.2015.7203757

Filename

7203757