Title :
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
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;
Conference_Titel :
Photonics (ICP), 2012 IEEE 3rd International Conference on
Conference_Location :
Penang
Print_ISBN :
978-1-4673-1461-9
DOI :
10.1109/ICP.2012.6379895
