Please use this identifier to cite or link to this item: https://doi.org/10.1109/LPT.2012.2223207
Title: Experiment on coherent optical RZ 8-Star QAM systems using decision-aided maximum likelihood phase estimation
Authors: Zhang, H. 
Zhang, B.
Yu, C.
Kam, P.-Y. 
Keywords: Coherent optical communications
modulation format
phase estimation
phase noise
Issue Date: 2012
Source: Zhang, H.,Zhang, B.,Yu, C.,Kam, P.-Y. (2012). Experiment on coherent optical RZ 8-Star QAM systems using decision-aided maximum likelihood phase estimation. IEEE Photonics Technology Letters 24 (23) : 2139-2142. ScholarBank@NUS Repository. https://doi.org/10.1109/LPT.2012.2223207
Abstract: In this letter, a return-to-zero 8-star quadrature amplitude modulation (QAM) signal is generated for the first time by using a parallel I/Q modulator followed by an amplitude modulator with binary drive signals. Our experimental results verify the theoretically derived approximate bit-error rate and ring ratio optimization algorithm of the 8-star QAM. Decision-aided maximum likelihood phase estimation (PE) shows comparable performance with V&V Mth-power PE, but with much less computational complexity. © 1989-2012 IEEE.
Source Title: IEEE Photonics Technology Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/55953
ISSN: 10411135
DOI: 10.1109/LPT.2012.2223207
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