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|Title:||Experiment on coherent optical RZ 8-Star QAM systems using decision-aided maximum likelihood phase estimation|
|Authors:||Zhang, H. |
|Keywords:||Coherent optical communications|
|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|
|Appears in Collections:||Staff Publications|
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