BROWSE
Detail
Journal Article
Channel Estimation and Synchronization for Polarization-Division Multiplexed CO-OFDM Using Subcarrier/Polarization Interleaved Training Symbols
- Authors
- Chun Ju Youn, Xiang Liu, S. Chandrasekhar, Yong-Hwan Kwon, Jong-Hoi Kim, Joong-Seon Choe, Duk-Jun Kim, Kwang-Seong Choi, Eun Soo Nam
- Issue Date
- 2011-08
- Citation
- Optics Express, v.19, no.17, pp.16174-16181
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We propose and demonstrate the use of subcarrier/polarizationinterleaved training symbols for channel estimation and synchronization in polarization-division multiplexed (PDM) coherent optical orthogonal frequency-division multiplexed (CO-OFDM) transmission. The principle, the computational efficiency, and the frequency-offset tolerance of the proposed method are described. We show that the use of subcarrier/polarization interleaving doubles the tolerance to the frequency offset between the transmit laser and the receiver's optical local oscillator as compared to conventional schemes. Using this method, we demonstrate 43- Gb/s PDM CO-OFDM transmission with 16-QAM subcarrier modulation over 5,200-km of ultra-large-area fiber. © 2011 Optical Society of America.
- KSP Keywords
- 16-ary quadrature amplitude modulation(16QAM), Channel estimation(CE), Coherent optical orthogonal frequency division multiplexing(CO-OFDM), Computational Efficiency, OFDM transmission, Offset tolerance(OT), Subcarrier modulation, Ultra-large, frequency offset, large area, local oscillator
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
