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http://hdl.handle.net/10397/93970
Title: | Signal power distribution based modulation format identification for coherent optical receivers | Authors: | Liu, J Zhong, K Dong, Z Guo, C Lau, APT Lu, C Lu, Y |
Issue Date: | Jul-2017 | Source: | Optical fiber technology, July 2017, v. 36, p. 75-81 | Abstract: | A simple modulation format identification (MFI) technique based on extracting features from the statistical distributions of normalized signal power is proposed for cognitive coherent optical receivers. The proposed MFI technique requires no prior training and is independent of phase noise or frequency offset. Furthermore, it also performs good identification of the polarization-multiplexed (PM) M-QAM signals even after insufficient equalization of the constant modulus algorithm (CMA). Simulation results demonstrate successful MFI among PM-QPSK, PM-8-QAM, PM-16-QAM, PM-32-QAM and PM-64-QAM signals within OSNR range of practical system. Experimental verification using PM-QPSK/16-QAM/64-QAM signals also confirms the feasibility of the proposed MFI technique after long distance fiber transmission. | Keywords: | Coherent optical receiver Digital signal processing Modulation format identification |
Publisher: | Academic Press | Journal: | Optical fiber technology | ISSN: | 1068-5200 | EISSN: | 1095-9912 | DOI: | 10.1016/j.yofte.2017.02.009 | Rights: | © 2017 Elsevier Inc. All rights reserved. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Liu, J., Zhong, K., Dong, Z., Guo, C., Lau, A. P. T., Lu, C., & Lu, Y. (2017). Signal power distribution based modulation format identification for coherent optical receivers. Optical Fiber Technology, 36, 75-81 is available at https://doi.org/10.1016/j.yofte.2017.02.009. |
Appears in Collections: | Journal/Magazine Article |
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