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
modulation format identification (MFI) amplitude histogram space high-order modulation format optical performance monitoring
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.