DocumentCode
3496593
Title
Compensation of quadrature imbalance in an optical 16-QAM digital coherent receiver
Author
Faruk, Md Saifuddin
Author_Institution
Dept. of Electr. & Electron. Eng., Dhaka Univ. of Eng. & Technol., Gazipur, Bangladesh
fYear
2011
fDate
22-24 Dec. 2011
Firstpage
538
Lastpage
541
Abstract
In this paper, the impact of quadrature imbalance (QI) is analyzed for an optical 16-quadrature amplitude modulation (16-QAM) transmission system that employs digital coherent receivers. A compensation method for QI in digital domain is demonstrated using four real-valued filters connected in butterfly configurations and adapted by decision-directed least-mean-square (DD-LMS) algorithm. The effectiveness of the proposed QI compensation scheme is verified by numerical simulations.
Keywords
filtering theory; least mean squares methods; optical modulation; optical receivers; quadrature amplitude modulation; butterfly configurations; decision-directed least mean square; digital coherent receiver; optical 16-QAM; quadrature imbalance compensation; real-valued filters; Phase shift keying; Quadrature amplitude modulation;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer and Information Technology (ICCIT), 2011 14th International Conference on
Conference_Location
Dhaka
Print_ISBN
978-1-61284-907-2
Type
conf
DOI
10.1109/ICCITechn.2011.6164847
Filename
6164847
Link To Document