Frontiers of Optoelectronics, 2019, 12 (2): 190–196, 网络出版: 2019-11-14  

A novel modulation format identification based on amplitude histogram space

A novel modulation format identification based on amplitude histogram space
作者单位
National Engineering Laboratory for Next Generation Internet Access System, School of Optical and Electronic Information (SOEI), Huazhong University of Science and Technology, Wuhan 430074, China
摘要
Abstract
In this paper, we proposed a novel modulation format identification method for square M-quadrature amplitude modulation (M-QAM) signals which is based on amplitude histogram space of the incoming data after analog-to-digital conversion, chromatic dispersion compensation at the receiver. We demonstrated the identification of quadrature phase-shift keying (QPSK), 16-QAM, 64-QAM formats with an amplitude histogram space. Simulation results show that it achieve 100% identification accuracy when the incoming signal OSNR is 14 dB to identify the modulation format of QPSK, 16-QAM, and 64-QAM signals in digital coherent systems. The method has low complexity and small delay.

, . A novel modulation format identification based on amplitude histogram space[J]. Frontiers of Optoelectronics, 2019, 12(2): 190–196. Tianliang WANG, Xiaoying LIU. A novel modulation format identification based on amplitude histogram space[J]. Frontiers of Optoelectronics, 2019, 12(2): 190–196.

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