2026-04-13T02:18:13Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/4177712026-01-27T03:58:03Zcom_2072_1033col_2072_452950

urn:hdl:2117/417771 Modulation format recognition scheme based on discriminant network in coherent optical communication system Yang, Fangxu Tian, Qinghua Xin, Xiangjun Pan, Yiqun Wang, Fu Lázaro Villa, José Antonio Fàbrega Sánchez, Josep Maria Zhou, Sitong Wang, Yongjun Zhang, Qi Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica Modulation format identification Automatic modulation recognition Generative adversarial network Conditional generative adversarial network Discriminant network Coherent optical communication Digital signal processing In this paper, we skillfully utilize the discriminative ability of the discriminator to construct a conditional generative adversarial network, and propose a scheme that uses few symbols to achieve high accuracy recognition of modulation formats under low signal-to-noise ratio conditions in coherent optical communication. In the one thousand kilometres G.654E optical fiber transmission system, transmission experiments are conducted on the PDM-QPSK/-8PSK/-16QAM/-32QAM/-64QAM modulation format at 8G/16G/32G baud rates, and the signal-to-noise ratio parameters are traversed under experimental conditions. As a key technology in the next-generation elastic optical networks, the modulation format recognition scheme proposed in this paper achieves 100% recognition of the above five modulation formats without distinguishing signal transmission rates. The optical signal-to-noise ratio thresholds required to achieve 100% recognition accuracy are 12.4 dB, 14.3 dB, 15.4 dB, 16.2 dB, and 17.3 dB, respectively. This work is supported by the National Key R&D Program of China (2023YFB2905800), the National Natural Science Foundation of China (62021005), and the National Scholarship for International Students. Peer Reviewed Objectius de Desenvolupament Sostenible::3 - Salut i Benestar Objectius de Desenvolupament Sostenible::4 - Educació de Qualitat Objectius de Desenvolupament Sostenible::5 - Igualtat de Gènere Objectius de Desenvolupament Sostenible::8 - Treball Decent i Creixement Econòmic Objectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructura Objectius de Desenvolupament Sostenible::10 - Reducció de les Desigualtats Postprint (published version) 2024-10-01 Article https://www.mdpi.com/2079-9292/13/19/3833 http://creativecommons.org/licenses/by/4.0/ Open Access Attribution 4.0 International