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11 July 2017 Iterative algorithm for phase noise estimation in coherent optical DFT-S OFDM systems
Li Tao, Hui Tan, Chonghua Fang
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Optical Engineering, Vol. 56, Issue 7, 076103 (July 2017). https://doi.org/10.1117/1.OE.56.7.076103
Abstract
An iterative algorithm is proposed and investigated for phase noise estimation of discrete Fourier transform spread (DFT-S) orthogonal frequency division multiplexing (OFDM). Compared with common phase estimation (CPE), significant improvement of tolerance to laser bandwidth is obtained and 2.7 dB improvement at BER of 3.8×10−3 is found using the CPE-iter scheme in 103.3  Gb/s coherent polarization-division-multiplexed DFT-S OFDM system over 480-km transmission through simulation.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2017/$25.00 © 2017 SPIE
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Li Tao, Hui Tan, and Chonghua Fang "Iterative algorithm for phase noise estimation in coherent optical DFT-S OFDM systems," Optical Engineering 56(7), 076103 (11 July 2017). https://doi.org/10.1117/1.OE.56.7.076103
Received: 7 March 2017; Accepted: 21 June 2017; Published: 11 July 2017
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KEYWORDS
Orthogonal frequency division multiplexing
Fourier transforms
Optical simulations
Tolerancing
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