Pilot-aided Log-likelihood Ratio for LDPC coded M-QAM CO-OFDM System

Shengjiao Cao; Pooi-Yuen Kam; Changyuan Yu; Changyuan Yu; Changyuan Yu

doi:10.1364/OFC.2014.W3J.1

Optical Fiber Communication Conference
OSA Technical Digest (online) (Optica Publishing Group, 2014),
paper W3J.1
•https://doi.org/10.1364/OFC.2014.W3J.1

Pilot-aided Log-likelihood Ratio for LDPC coded M-QAM CO-OFDM System

Shengjiao Cao, Pooi-Yuen Kam, and Changyuan Yu

Optical Fiber Communication Conference 2014

San Francisco, California United States
9–13 March 2014
ISBN: 978-1-55752-993-0

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Coded Modulation II (W3J)

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S. Cao, P. Kam, and C. Yu, "Pilot-aided Log-likelihood Ratio for LDPC coded M-QAM CO-OFDM System," in Optical Fiber Communication Conference, OSA Technical Digest (online) (Optica Publishing Group, 2014), paper W3J.1.

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Abstract

Pilot-aided log-likelihood ratio as well as its approximation are derived for LDPC coded M-QAM CO-OFDM system with consideration of laser phase noise. Our metric performs better than the conventional metric in 16QAM and 64QAM simulation.

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