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Low-complexity two-stage carrier phase estimation for 16-QAM systems using QPSK partitioning and maximum likelihood detection

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8 Author(s)
Yuliang Gao ; Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China ; Lau, A.P.T. ; Chao Lu ; Jian Wu
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A feedforward carrier phase estimation algorithm using a modified QPSK partition approach followed by maximum-likelihood (ML) detection is proposed. Results demonstrate complexity reduction by more than a factor of 2 compared with other techniques.

Published in:

Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2011 and the National Fiber Optic Engineers Conference

Date of Conference:

6-10 March 2011