A novel training symbol structure design for transmitter IQ mismatch estimation and compensation in CO-OFDM system
- Resource Type
- Conference
- Authors
- Ma, Xiurong; Li, Jingjing; Shan, Yunlong; Chen, Yu
- Source
- 2021 19th International Conference on Optical Communications and Networks (ICOCN) Optical Communications and Networks (ICOCN), 2021 19th International Conference on. :1-3 Aug, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Training
Integrated optics
System performance
Simulation
OFDM
Optical imaging
Optical fiber communication
CO-OFDM
IQ mismatch
training symbol
estimation
compensation
- Language
In this paper, a new training symbol structure consists of two adjacent training symbols is proposed to estimate transmitter in-phase/quadrature(IQ) mismatch and channel information in coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Each training symbol of the proposed scheme has two subsets which are mirror images of each other, and one subset values are set to zeros. Simulation in high speed gives the results that proved the proposed scheme increased the system performance.