Title :
An adaptive decision-feedback channel estimation for coherent optical OFDM
Author :
Zamani, Mahdi ; Chuandong Li ; Chen Chen ; Zhuhong Zhang
Author_Institution :
Canada Res. Center, Huawei Technol. Co., Ltd., Ottawa, ON, Canada
Abstract :
Adaptive channel estimation methods are proposed for reduced guard-interval (RGI) CO-OFDM. Channel estimation is updated adaptively after decoding a sequence of OFDM symbols using LS or MMSE decision-feedback from demodulator to channel estimator.
Keywords :
OFDM modulation; automatic repeat request; channel estimation; demodulators; least mean squares methods; LS; MMSE; RGI CO-OFDM; adaptive decision-feedback channel estimation; coherent optical OFDM; demodulator; reduced guard-interval CO-OFDM; Adaptive optics; Channel estimation; OFDM; Optical fibers; Optical receivers;
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
