DocumentCode
608931
Title
Dual-stage decision-directed phase estimator enabling perfect frequency-offset elimination in digital coherent optical receivers
Author
Mori, Yojiro ; Kikuchi, Kazuro
Author_Institution
Univ. of Tokyo, Tokyo, Japan
fYear
2013
fDate
17-21 March 2013
Firstpage
1
Lastpage
3
Abstract
We propose a dual-stage phase estimator controlled by the decision-directed LMS algorithm in digital coherent optical receivers. Simulations and experiments show that our proposed scheme can perfectly eliminate arbitrary frequency offsets in higher-order QAM systems.
Keywords
least mean squares methods; optical receivers; phase estimation; quadrature amplitude modulation; decision-directed LMS algorithm; digital coherent optical receivers; dual-stage decision-directed phase estimator; higher-order QAM systems; least mean square; perfect frequency-offset elimination; quadrature-amplitude modulation; Bit error rate; Frequency estimation; Frequency modulation; Optical attenuators; Optical receivers; Optical transmitters; Phase noise;
fLanguage
English
Publisher
ieee
Conference_Titel
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location
Anaheim, CA
Print_ISBN
978-1-4799-0457-0
Type
conf
Filename
6533071
Link To Document