Unconstraint adaptive frequency-domain equalizer for coherent optical receivers

Author

Faruk, Md Saifuddin

Author_Institution

Dept. of Electr. & Electron. Eng., Dhaka Univ. of Eng. & Technol., Gazipur, Bangladesh

fYear

2014

fDate

20-22 Dec. 2014

Firstpage

40

Lastpage

42

Abstract

In this paper, unconstraint adaptive frequency-domain equalizer (FDE) based on the constant-modulus algorithm (CMA) is investigated for equalization of linear transmission impairments in coherent optical receivers. With unrepeated 200-km transmission of 10-Gbaud quadrature phase-shift keying (QPSK) signal, it is verified that, compared with conventional constraint FDE, the proposed unconstraint FDE causes a very small sensitivity penalty; however, can be applied with much less computational complexity.

Keywords

adaptive equalisers; computational complexity; optical modulation; optical receivers; quadrature phase shift keying; CMA; QPSK signal; adaptive FDE; coherent optical receivers; computational complexity; constant-modulus algorithm; linear transmission impairments; quadrature phase-shift keying signal; unconstrained adaptive frequency-domain equalizer; unconstraint adaptive frequency-domain equalizer; Adaptive filters; Bit error rate; Equalizers; Frequency-domain analysis; Optical receivers; Phase shift keying; adaptive filter; digital signal processing; equalization; optical fiber communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (ICECE), 2014 International Conference on

Conference_Location

Dhaka

Print_ISBN

978-1-4799-4167-4

Type

conf

DOI

10.1109/ICECE.2014.7027008

Filename

7027008