Author:
Nguyen T.-H.,Mumtaz S.,Lorences-Riesgo A.,Sales-Llopis M.,Jauffret C.,Martins C. S.,Wu Z.,Frignac Y.,Charlet G.,Zhao Y.
Abstract
Based on conventional timing recovery (TR) algorithm, we propose a novel method for carrier frequency offset (CFO) estimation by exploiting the available spectrum information from TR. We experimentally validate our proposal in 4-subcarrier 100-GBaud coherent systems.