Title :
Significant overhead reduction of multi-band Tb/s coherent optical OFDM systems
Author :
Yi, Xingwen ; Zhang, Jing ; Deng, Mingliang ; Li, Yonggang ; Qiu, Kun
Author_Institution :
Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The timing and optical laser phase of individual bands in multi-band OFDM are correlated. We significantly reduce the OFDM overhead through using FFT window synchronization for channel estimation and sharing pilot subcarriers for phase estimation.
Keywords :
OFDM modulation; channel estimation; fast Fourier transforms; fibre lasers; optical fibre communication; phase estimation; FFT window synchronization; channel estimation; multiband coherent optical OFDM systems; optical laser phase; overhead reduction; phase estimation; OFDM; Optical fiber dispersion; Optical fibers; Optical receivers; Optical transmitters;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2011 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4577-0213-6
