Low complexity non decision directed blind carrier phase recovery algorithm for 16-QAM optical coherent receiver

Author

Khalil, Md Ibrahim ; Adib, Md Mosaddek Hossain ; Chowdhury, Arshad M. ; Faruk, Md Saifuddin ; Amin, A.A. ; Gee-Kung Chang ; Amin, N.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., North South Univ., Dhaka, Bangladesh

fYear

2012

fDate

1-3 Oct. 2012

Firstpage

400

Lastpage

403

Abstract

We propose and demonstrate a low complexity non decision directed blind carrier recovery algorithm (NDD-CRA) for 16-QAM optical coherent receivers. Through optimization of step size parameter (μ), we obtained similar performance compared to decision-directed phase estimation algorithm, however, our propose scheme has less complexity compared to the decision directed carrier recovery algorithm (DD-CRA) as the proposed scheme does not require any decision feedback module. From simulation, it is observed that the proposed scheme has less than 1.7 dB OSNR penalty at 10^-3 BER and up to 200-kHz linewidth laser compared with the theoretical performance.

Keywords

error statistics; optical receivers; quadrature amplitude modulation; 16-QAM optical coherent receiver; BER; DD-CRA; OSNR penalty; decision directed carrier recovery algorithm; decision-directed phase estimation algorithm; linewidth laser; low complexity nondecision directed blind carrier phase recovery algorithm; optimization; step size parameter; theoretical performance; Bit error rate; Laser noise; Optical feedback; Optical fibers; Optical receivers; Phase estimation; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics (ICP), 2012 IEEE 3rd International Conference on

Conference_Location

Penang

Print_ISBN

978-1-4673-1461-9

Type

conf

DOI

10.1109/ICP.2012.6379895

Filename

6379895