Assessment of nonlinear equalization algorithms for coherent optical transmission systems using an FPGA

Author

Amado, Sofia B. ; Guiomar, Fernando P. ; Muga, Nelson J. ; Pinto, Armando N.

Author_Institution

Dept. of Electron., Telecommun. & Inf., Univ. of Aveiro, Aveiro, Portugal

fYear

2015

Firstpage

1

Lastpage

4

Abstract

We demonstrate an hardware implementation of nonlinear equalization algorithms, numerically assessed using a polarization-multiplexed 16 quadrature amplitude modulation (PM-16QAM) transmission system. Nonlinear equalization is based on split-step Fourier (SSF) method and on a simplified Volterra series nonlinear equalizer (simVSNE). Hardware implementation is performed using a co-simulation strategy between MATLAB and Xilinx´s ML605 Evaluation Kit. For the considered simulation scenario we have found that the simVSNE enables to approximately halve the latency associated with the SSF method, due to its lower spatial resolution requirements.

Keywords

Fourier analysis; Volterra series; equalisers; optical communication; optical modulation; quadrature amplitude modulation; FPGA; PM-16QAM transmission system; SSF method; Volterra series nonlinear equalizer; coherent optical transmission system; nonlinear equalization algorithms assessment; polarization multiplexed 16 quadrature amplitude modulation; simVSNE; spatial resolution; split-step Fourier method; Bit error rate; Digital signal processing; Field programmable gate arrays; Hardware; MATLAB; Nonlinear optics; Signal processing algorithms; FPGA; coherent detection; digital signal processing; hardware implementation; nonlinear equalization; optical communications;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2015 17th International Conference on

Conference_Location

Budapest

Type

conf

DOI

10.1109/ICTON.2015.7193331

Filename

7193331