학술논문
Investigation of Decision-based Feedback Carrier Phase Recovery for High-order QAM Signals
Document Type
Conference
Author
Source
2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC) OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022 27th. :1-4 Jul, 2022
Subject
Language
Abstract
Costas loop is analyzed to be superior to phase locked loop for high-order QAM signals with high SER. In experiments, the SNR of Costas loop is 1.7 dB higher than phase locked loop for 256 QAM.