QPSK-Partition Assisted Frequency Offset Estimation for Probabilistically Shaped Coherent Optical Communication Systems

Xue Tang,Lishan Yang,Hengying Xu,Chenglin Bai,Weibin Sun,Xinkuo Yu,Lingguo Cao,Xiuhua Lv,Peng Qin

Asia Communications and Photonics Conference 2021（2021）

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摘要

A QPSK-partition assisted frequency offset estimation scheme is proposed for probabilistically shaped coherent systems. High FOE accuracy can be achieved under conditions of moderate/strong shaping. The complexity of this scheme is reduced to ${O\left(N\right)\,}$ .

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关键词

probabilistically shaped coherent optical communication systems,QPSK-partition assisted frequency offset estimation scheme,probabilistically shaped coherent systems,high FOE accuracy

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